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Let's learn about via these 69 free stories. They are ordered by most time reading created on HackerNoon. Visit the to find the most read stories about any technology. Productivity Tools /Learn Repo It's called "Slack" for a reason. 1. Top 10 Productivity Apps to Make 2020 Your Most Productive Year Yet Welcome to Part 2 of the Tech Productivity Series 2. How Task Management Software Helps Achieve Productivity in a Post-Pandemic World Before the pandemic, roughly 30% of the part-time workforce was working remotely. It is estimated this will expand to at least 48% post-pandemic. Until the pandemic is over, it’s unclear exactly how much of the full-time workforce that can work remotely will continue to do so. 3. 5 Best Online Tools to Compress and Optimize Your Images Here are the 5 Best Online Tools to Compress and Optimize Your Images. 4. On Productivity Tools And Time Management With Julien Quintard, Founder Of Routine An interview with Julien Quintard on why he is building Routine and why productivity tools as we know it is going to change drastically in the a few quarters. 5. Maybe, Just Maybe, Writing Your Passwords On Paper Isn't So Bad? This is not a joke. Stationery stores and selling pocket notebooks with the word "PASSWORDS" written across the front. Inside are pages, with alphabetized tabs and spaces for you to record the website name, the username (login), and your password. Plus a space for notes. 6. The Placeholder Tools that Boost Productivity for Developers and Designers 7. Boost Your Productivity as a Developer With These 10 Tools Productivity is one of the important metrics for developers. Stay organized with this list of the essential tools for a developer to increase your productivity. 8. 10 Best Web Dev Tools of 2021 Top 10 Web Dev Tools in 2021 9. Startup Interview with Henry Shapiro, Co-founder at Reclaim.ai Reclaim is an intelligent calendar assistant that enables you to block adaptive time for anything you care about. Vote for us for HackerNoon's SOTY! 10. How to Merge PDFs Without Adobe Acrobat For a task or assignment, different members are responsible for different parts. So, it's very common that the team must conclude the respective results at last. If their results are in the PDF formats, they must merge the PDFs to reach the final result. There are still many other occasions that we need to merge PDF files. 11. 22 AI Tools You Should Know About List of top trending AI tools 12. How to Stay Focused When Coding: 8 Productivity Tips Your well-being, routines, motivations and how effectively you plan, all play a role in your ability to remain focused while coding. 13. apibeats: Get Notified on Slack When The API Changes apibeats is an API maintenance platform that lets backend and frontend developers collaborate, and notifies teams on Slack & Email when the API changes in any way. apibeats provides a complete environment for you to interact with your APIs. It lets you create collections of endpoints and watch them for uptime/downtime and changes in structure, test your collections by making requests without writing any code and document your API collections. 14. How Time Tracking is Reshaping the Future of Work If you are running a business or just started your own startup, it’s important you keep an eye out on every minute detail. In case you are hiring designers, software developers, and/or a team for project management, tracking total working hours is probably what you should be doing. 15. 15 Apps that Can Make You Productive Here, 15 amazing apps have been listed for increasing our productivity. 16. 15 Best Project Management Tools Project management systems are supposed to make the life of teams easier and the work process faster and more efficient. 17. MakeMySummary Software Update:  June 2020 We recently released an update for MakeMySummary. The following are the highlights of the update. 18. 🏅year in Review: Tools That Helped my Productivity as a Software Engineer As a software engineer, you have to find the perfect mix of tools and templates that can help make you more efficient in your day-to-day tasks. 19. 4 Productivity Hacks That Yield Quick Results Having trouble hitting deadlines and staying focused? Well, have no fear! This article will introduce four productivity hacks that almost anyone can implement immediately and see fast results. 20. Writing a Slack Bot that Responds to Action Commands I recently wrote a slack bot that responds to action commands (like /ech yolo ) but I ran into some trouble finding exactly how to do this, so I’m documenting it here for other peeps to find. The exact error I hit was /echo failed with the error "dispatch_failed" . 21. NPX Introduction: Fast Work With NPM Package Binaries With Node.js, building CLI utilities and development tools have gotten so much easier. 22. Essential Productivity Tips Every Software Developer Should Know Here are the game changing productivity hacks, tools, and tips that have helped me most as a software developer. 23. 17 Killer Web Apps to Increase Productivity 🚀💯 24. 5 Team Communication Tools That Will Skyrocket Your Productivity Teams come in all sizes and these days from all parts of the world. Geography is no longer a limitation with messaging tools that can connect you with anyone in the world. The right communication tools can skyrocket your team’s productivity, as ability to easily share information and ideas with all your stakeholders is key to driving productivity. 25. Windows 11's New Focus Mode Is Pretty Useful The new Focus Mode feature is a useful tool that helps you get more productivity out of Windows 11 in a simple way. Though that simplicity does cut both ways 26. How to Improve Developer Productivity Become more productive as a developer in the next 10 minutes using researched backed tips and hacks. 27. Summarizing Youtube Videos and  News/Blog articles I made a new app/service that lets users summarize the deluge of info that comes our way every day. Its unambiguously named MakeMySummary. 28. Introducing CatalyzeX: A Browser Extension for Machine Learning Andrew Ng likes it, you probably will too! 29. How Nonprofits Can Get Adobe Discounts via TechSoup: FAQs Learn more about Adobe for Nonprofits, including information on eligibility, product licensing, downloading and installing software, and more. 30. How to Hack Your Team: Top 5 Tools For Team Management Automation in 2021 Wondering how to increase your remote team's productivity? These tools will help. 31. Top 10 Productivity Apps For iOS To Take Your Productivity To The Next Level Find the best productivity apps for iPhone or iPad. These best iPhone productivity apps help you get more things done faster and more efficiently than before. 32. Mind Hacking: Using Technology to Rewire Your Brain Like a Monk Not so long ago my life was an exercise in excel spreadsheets, over-scheduled phone calls, and constant emails. I was working in a high-pressure venture capital job, and putting myself in a state of mental fragmentation. 33. 4 Reasons You Shouldn't Use MoSCoW for Product Prioritization I often see MoSCoW being used to prioritise product development work, but for anything mildly complex (almost anything, really), and especially any product  with more than one customer, it isn’t appropriate. Here’s why. 34. How to Install RStudio on the WSL System If you are using Windows and don’t want to use the RStudio client on the Windows side, this method will work perfectly. 35. 6 Chrome Extensions That You’ve Never Heard Of But Should Try Out There are two types of people when it comes to using browser extensions. You have them all or you have them none. The adventure starts with just one install button. Then, you're lost in the extension world.  You’re adding a new one to your browser week by week. But what are the best Google Chrome extensions that you need to have? 36. Top 10 Javascript File Managers File management is a helpful tool in any business application. Here is an overview of the most functional, elegant, and popular JavaScript File Managers ready to be built into the client-server solution. Even if you do not have a direct need to work with files, you can borrow the classic file explorer interface for other tasks. For instance, there are some cases of the classic interface becoming the basis for a new web application in this article. 37. And Then He Said: Let's Fly Like an Eagle! Hi there, I'm Vadim, founder of Wedding Planning Assitant, and this is my three short stories about that. 38. How To Choose A Time Tracking Solution For Your Business: A Step By Step Guide As the impact of the COVID 19 epidemic on the global economy and societies starts to feel like less of a momentary blip on the radar and more of the new normal that we are all going to have to adjust to and get used to, people are getting used to the idea of working from home or remotely in some capacity. One of the technologies that have enabled this to happen and thus proven indispensable to the pandemic economy is time tracking solution. 39. The Fintech CTO's Guide To Remote Team Tools and Reviews Remote culture has never been so in demand before. The pandemic has changed the way we thought the world was likely to evolve in the nearest future. However, changes always go hand in hand with opportunities. 40. How Did Pocket Create a Habit Forming Product? A simple analyses of Pocket app using the infamous Hook Framework 41. 10 Features Where Coda Is Better Than Notion Notion vs. Coda: a look at 10 features in Coda that are better than Notion from the perspective of a Coda employee. This article has been updated for 2022. 42. 5 Productivity Tools Every Solopreneur Needs This pandemic is the perfect time to focus on your side hustle 43. Productivity 101: How to Implement the Pomodoro Productivity Technique If you’re looking to be more productive in your life, you may have heard of the Pomodoro productivity hack or technique. 44. 6 Incredible Productivity Tools for Programmers Productivity is key when it comes to getting work done with a smile. Burndowns are natural, here is how to minimize them and keep hustling. 45. Invoicing Tech Can Boost Brand Appeal Your brand is the essence of your company. It’s what your customers perceive you to be, and it’s how you portray your business to the world. 46. The Art of Mastering Atomic Habits If you want to change your life, you need to start with your habits. Atomic habits are the building blocks that make up our lives. 47. 5 Small Business Technologies You Can’t Afford to Ignore In an ever-changing world, staying up to date with modern business technologies can provide business owners with the leverage they need to be successful. This means being prosperous in their ventures and relevant in the competitive market. In most cases, using the correct types of technology will facilitate greater efficiency and even productivity. 48. Celebrating 10,000+ stars on GitHub repository⭐ ❤️️ Postwoman is celebrating the milestone of reaching 10,000 GitHub stars 🎉 49. 5 Tech Tools to Sharpen Your Creativity Creativity is important today because it helps us innovate and think outside the box. Knowing how to use your creativity can open up a world of opportunities, so it's worthwhile taking the time to sharpen these skills with the right tools. 50. Get Rid Of Your Self-Imposed Restrictions: An App Review of Freedom Want to improve your focus so you can get more done? Stop relying on self-discipline and use the Freedom app instead. 51. Without Digital Adoption, Your Enterprise will Struggle It’s clear to everyone that we’re living in a digital age. In a time when people expect to run their lives through their smartphones, competitive enterprises have no choice but to adopt digital tools. 52. 13 Must-Have Tools for Content Marketing in 2020 Hey there! If you’re looking for the best Content Marketing tool for your Business, stick here! Because I’ve made a list of tools for you that you need for your Content Marketing in 2020. I’ve used a lot of tools for my Content Marketing and shortlisted a few that are a must-have if you are to market your business through social media and Content Marketing. 53. 17 Apps to Boost Developer Productivity To help you build the ultimate workflow, we went looking for the developer productivity tools that are currently trending in coding communities. 54. 5 New AI Tools That Can Help You To Be More Productive How much of your productive time is taken away by all those meaningless news, stories and activities? Especially if you are a high performing executive or professional, how productive would you be if you weren’t distracted? We lose a lot of time on the activities that seem to be crucially important, while they are not. Although social media and numerous web-based communication platforms have definitely made communication a much less bothersome task, it is simply mind boggling to realize just how much of our time is spent on social media. 55. A Critical UX Review of Trello's New Features Trello recently launched new features and a business version. This could only mean one thing. It's time for a design review. 56. The Era of Opinionated Productivity Software: Superhuman, Roam, What’s Next? Productivity software is indispensable for all of us. Dedicated tools for creating spreadsheets, writing down notes, managing our to-dos etc. ensure that we are productive in our professions. Incumbent vendors (e.g. Microsoft, Google) have dominated this space for many years — yet, there is a chance for new players to enter the stage. New challengers such as the E-Mail client Superhuman or the note-taking tool Roam Research can compete by developing highly opinionated products which deliberately omit flexibility. Instead, the software is stringently crafted around a very particular way of approaching a process, which is inherently seen as superior by the firm. 57. How to Use Dora Metrics to Become an Elite Team Tradeoff between speed and quality is a myth. 58. How to Create a Habit Tracker in Notion Why Even Track Your Habits? 59. Automating Pull Request Merges with Mergify Mergify is a tool that helps prioritize, queuing, and automatically merge your pull requests. 60. 20+ Extraordinary Apps For Remote Teams I am sure that you already have Zoom, Slack and Asana on your computer. But daily office life is more than written tasks and planned meetings. There are lunches with your team, spontaneous talks near the water cooler, common tasks and goals you want to acheive. It’s your comfortable workplace and it by itself motivates you to be productive. Just look at the bunch of stickers on the wall — big things are waiting for you! 61. How To Improve Concentration: 2021 Edition How to improve your focus - especially as a software developer. Book review of Deep Work by Cal Newport. 62. Upgrade Your Note-taking With Roam Research “Personal Knowledge Management (PKM) is the practice of capturing the ideas and insights we encounter in our daily life, whether from personal experience, from books and articles, or from our work, and cultivating them over time to produce more creative, higher quality work.” 63. Notion: Superior Productivity For All Notion is an All-In-One workspace. Notion’s platform allows you to create task-oriented lists and projects, wikis, databases, lightweight CRM’s, tables & more! 64. InVision Gains 2 Million Users, Adds Freehand Templates (Interview) After a year that included 40% growth in user base and a 130% surge in demand for online whiteboard products, InVision has released an update with Freehand template gallery. 65. Top 10 Business Development Tools in 2020 and 2021 Slack, Rocketbolt, and Trello are among the best business development tools in 2021. In this article, we'll go over 10 tools your business should consider. 66. 6 Tools to Help SMBs Hack Productivity in 2020 The approach of the new year is always a great time to revisit all the awesome things your SMB has achieved and pat yourself in the back about how great things are running. 67. The Zen of Python: As Related by Masters The Zen of Python saw light for the first time in 1999. It's one of the many aspects that adds to the awesomeness of Python. It's a set of expressions which corners the spirit of the language. It was enounced by Tim Peters, a reputable software engineer, master Pythonista and Python's 'most prolific and tenacious core developer' in the words of none other than Guido [18]. This article bases itself mostly on the saying of core devs and highly reputable members. It makes a great gift to all those interested in the history of the sysadmin script which took the world by (pleasent) surprise. 68. All You Need To Know About SharePoint Migration Learn how you can simplify SharePoint Migration process easily with the best SharePoint Migration Tools. 69. The Best 75 Evernote Alternatives:  Complete Review Has Evernote become a unicorn that has stopped caring about its core users while trying to attract broader markets? Thank you for checking out the 69 most read stories about Productivity Tools on HackerNoon. to find the most read stories about any technology. Visit the /Learn Repo

69 Stories To Learn About Productivity Tools

It’s Tuesday at 8:32 a.m. Sarah, a facilities manager, is darting off to work. She offers a quick goodbye to her twelve-year-old daughter, who’s texting a friend and listening to music on her Bluetooth headphones. Sarah gets into her EV, which automatically connects to her phone, and begins playing a song from her 80’s playlist. Upon Sarah’s entry, the car adjusts the seats and steering column height according to her preferences. On the drive to work, she uses a virtual assistant to call her husband to remind him of a dinner commitment that night. Finally, Sarah gets to work and wants to run an energy consumption report for two of her buildings. However, her submeter app and her energy dashboard don’t connect natively. Frustrated, Sarah calls her integrator for help. They give her an estimate of a week. Most of us understand Sarah’s frustration. It’s almost absurd how much connectivity, personalization, and power we possess in our ordinary lives that isn’t translated to working with buildings. Like Sarah, we often think: “ is ” Why the hell is this so hard to do when using our personal devices so easy! There’s a reason why Sarah and many of us in the automated buildings industry have this experience. All our everyday gadgets and technology today use cloud-native architecture. Imagine if your building gave you as much power to connect, to manage, and to create as your smartphone did. In general, the automated buildings industry has been slow to adopt cloud-native technology, and our buildings and stakeholders like Sarah are paying the costs. But there’s a way for the industry to embrace the power of cloud-native and transform our properties into powerhouses of integration and automation. It’s the Interoperable Building Box or IBB from the Coalition for Smarter Buildings ( ). C4SB Why Do We Need an IBB? Today, the smart buildings industry is facing an onslaught of challenges and disruptions from multiple sides. Building information systems are getting increasingly complex—more sensors, more points, more systems, AI, and digital twins. We have a flood of information and streams of data, yet no single nozzle that will do the work of putting out the fire. We also have incredible applications that do wonderful things, but getting them to work and communicate with each other seems to always be a Herculean task. The amount of effort and time is a major pain point for folks like Sarah, who expect things to work as easily as everything else in their lives. For most, the benefits of integration outweigh the level of effort. This is the main reason for the slow adoption rate. only just The industry’s slow shift to cloud-native is revealing a serious skills gap. Cloud-native has been the standard architecture for IT departments for years now, and the onboarding of OT into the cloud-native space is beginning to blur the lines between the two. IT and OT are converging, and knowledge of both is becoming a prerequisite. Today, it’s difficult to find enough workers with the skills and knowledge level to tackle both. All these challenges hobble the goal of delivering smart technology at scale. Overcoming these obstacles requires technology that facilitates app integration while also improving the experience of industry stakeholders like Sarah. Instead of retooling our entire workforce, we can retool the way we interface with building systems. What is an Interoperable Building Box or IBB? Let’s start with a technical definition: The IBB (Interoperable Building Box) is orchestration software running on a physical or virtual machine that exists on-prem; the IBB acts as a standardized interface to connect a building’s local network to the . The IBB runs containerized cloud-native applications and services based on the Open Container Initiative ( ) standard. The IBB makes deploying and managing containerized software easier and more secure and provides an automated way for systems to discover and connect with systems having matching capabilities both within the IBB or in the Cloud in a plug-and-play manner. Internet Cloud OCI The purpose of the IBB is to make a building cloud native. That is, all its technologies and apps are built to work within (i.e., “native to”) a cloud environment. It must also support standard cloud functionalities like containerization, dockers, and orchestration (Kubernetes). By functioning like a standard cloud provider, the IBB allows the building to reap the advantages of localized control, namely better resiliency, security, and faster access. inherently Imagine “A Smartphone for Your Building” In a way, you can think of the IBB as a “smartphone for your building.” Consider all the ways your phone expands your capacity to do things. You can talk to anyone, anywhere, at any time. You can download, install, and run almost an unlimited number of apps. You can connect to the internet, access cloud storage, store local data, share files with your computer, and connect to wireless devices. In the same way, the IBB expands your building’s potential by providing it greater power to communicate and connect. Overall, your property becomes exponentially more efficient and productive. And because the IBB is located on-prem (i.e., in your building’s “pocket”), it can reliably deliver secure local storage of sensitive data and low latency times. For example, data from equipment sensors need not make the long round-trip to a cloud platform and back again. Data storage and computation are already . Such local processing makes storage of sensitive information more secure, while low latency times help protect critical systems and sensitive equipment, while the cloud connection automatically creates a copy of such data for backup and analysis in the cloud. This is analogous to taking a picture on your smartphone; you can see the image immediately, and it is also stored in your cloud photo album. in the building Parts of the IBB At the heart of IBB is containerization—a technology for packaging, distributing, and managing applications in a self-contained unit (i.e., “containers”). Containers house everything an app needs to run, and this isolation makes them lightweight, portable, and consistent. Since multiple containers can run on the same IBB, they share the required computing resources (CPU, memory, etc.). cloud-native The IBB consists of three main parts: , , and . These parts function together to make deploying and managing containerized apps easier and more secure. Operating System (OS) Administration IBB Apps (OS) Operating System Like a great deal of cloud-native computing environments, IBB runs on Linux, either on bare metal hardware or on a suitable Virtual Machine. The OS layer of the IBB also includes the open-source Kubernetes (often known as k8s) orchestration platform that manages IBB App containers. The OS layer of the IBB also includes other open-source software to further automate the management of IBB Apps. Administration The admin area of the IBB provides the tools for administrators to install and manage containerized applications. This includes software for the management of IBB Apps installed in the IBB, as well as user access and security policies and management. These admin tools provide admins access to the IBB remotely, using secure proxying mechanisms. IBB Apps These are the Apps and services provided by Independent Software Vendors (ISVs) that are installed in the IBB by admin users using the Admin tools provided. Each IBB App exists in its own container environment and thus operates separately from other containers (as if in its own hardware environment). Each IBB App communicates with other IBB Apps using IP networking with the help of IBB orchestration. Improving Stakeholder Experience IBB implementation improves the experience for all stakeholders because it simplifies the integration process. Currently, building owners and managers like Sarah need to employ capable folks with specialized knowledge to get things to work together. The process is complex, time-consuming, and expensive. The IBB takes the complexity out of the process by facilitating plug-and-play workflows. Let’s see how this works by following the process of installing and configuring an IBB using two different personas. IBB Installation Both HVAC and IT engineers can use familiar workflows and tools when installing and configuring an IBB. Here are the steps for installing an IBB for an HVAC Engineer and a DevOps: —Jake is tasked with installing a physical IBB device. He orders a suitably specified IBB-compatible device from his trusted vendor (CPU, memory, storage, etc.), takes it to the site, fastens it to a wall, connects it to the network, and on his browser, navigates to the IBB’s address and the IBB “Welcome” page. Jake (HVAC Engineer) —Mandy is tasked to install an IBB in a Virtual Machine on-prem. She navigates to the IBB repository on GitHub, looks over the IBB installation instructions, downloads the code, installs the IBB in the VM using her standard DevOps tools, and navigates to the IBB’s address and to the IBB “Welcome” page. Mandy (DevOps) Both Jake and Mandy were able to work in ways comfortable with their respective experience and skillset to achieve similar results; Jake through physical “box” installation that he was comfortable with, and Mandy used online “virtual” tools she uses daily. These flexible workflows and tools speed up the integration process. IBB Configuration Once installed, Jake and Mandy will need to configure the IBB to their specific needs for the building. On the IBB “Welcome” page, Jake/Mandy find a list of management platforms that support the IBB. They select the platform being used for their building project. In this example, they choose . Next, they login into the portal. The IBB is now installed and configured to the appropriate management platform. Acme X Cloud Acme X Cloud Acme X Cloud Now, let’s continue the configuration, considering Jake’s workflow. App Installation Once the configuration is complete, Jake can install and manage applications. He begins by choosing the “Install IBB App” option in the management platform (i.e., ). Next, he selects the app he wants to install. In this case, he wants to install a Haystack IDL (Independent Data Layer). Jake configures the app as necessary. The IDL app is installed, and Jake is presented with its UI. Acme X App Integration Next, Jake wants to install a dashboard required for the IDL. He uses the same IBB management system to install and configure the dashboard. The dashboard is then automatically connected to the IDL and runs the way Jake configured it. That is, the dashboard is running in the IBB, and it’s also connected to the IDL because they have compatible capabilities. Both Jake and Mandy can work efficiently and productively using their own skills and knowledge. Jake knows the apps he installed are compatible and already comply with IT policies. Mandy knows that the IBB is either a well-managed physical device or a virtual device she herself can oversee. More importantly, both engineers work within the purview of their own skill set. That is, they need not know anything about what the other does. In this way, the IBB helps ameliorate the industry’s skills gap. Instead of retooling our entire workforce, we can retool the way we interface with building systems. Vendors and End Users As was stated earlier, the idea of cloud-native architecture and containerization isn’t new; it’s only newly applied to the building automation industry. For years, app developers and the IT industry have built massive ecosystems that support and expand these technologies. Every time you use the Internet or your smartphone, you are using cloud-native. Everyone benefits, and now buildings can reap these benefits with the IBB. For example, mobile app developers follow common standards and protocols within both the iOS and Android platforms. The standards give developers dependable and consistent guidelines that make app deployment easy. Moreover, markets like Apple Store and Google Play ensure these standards are followed. Customers who download these apps can trust they are secure, reliable, and compatible with their devices. There’s no need to call someone to integrate your Instagram app to your iPhone. It just works. Now, contrast the above with today’s automation industry workflows, where thousands of vendors and developers create apps built with a disparate collection of proprietary standards, protocols, and guidelines that run on different platforms. Some are cloud-native, but most aren’t. With the support of vendors and the automation community, we can adopt the IBB and cloud-native architecture to create a collaborative ecosystem that would unleash the functionality and creativity of the entire industry. Conclusion The IBB not only holds the promise of streamlined integration and enhanced efficiency for the smart buildings industry, but it also addresses the very frustrations experienced by stakeholders like Sarah. For her, the dream of plug-and-play apps for her building is in reach. The IBB will result in a disruption to the entire industry by changing the way we develop, deploy, and manage our apps and data. Cloud-native offers the freedom and power our industry needs to leap forward and meet Sarah’s expectations. Moreover, the IBB’s benefits ultimately trickle down to the building’s users, tenants, and occupants. Also published . here

Introductory Guide to the Interoperable Building Box (IBB)

In my , I have shown a way to unify the implementation of the most well-known graph-traversal algorithms. Now, let's make it more visually appealing and look into the performance differences. last post The story behind A few years ago, Yandex organized a contest called with an enticing prize: a ticket to a . The contest resembled a game, with participants tasked with finding optimal routes on a map and optimizing delivery using robotic couriers. Robots Couriers closed self-driving conference for professionals As I delved into the topic, I discovered that despite route finding being a solved problem, it continued to interest the professional game development community. Between 2010 and 2020, engineers , particularly beneficial for AAA games with massive maps. Reading on these optimizations was an exciting experience. made significant optimizations to the A* algorithm articles and research papers Furthermore, the contest requirements were designed to enable easy assessment of program outputs by the contest’s testing system. As a result, there was little emphasis on visualization. I found exploring this field intriguing and developing a small application that uses well-known graph algorithms to find routes on a grid map. To visualize my findings, I employed the SFML graphics library. Goal This project builds upon one of , where I demonstrated that four well-known path-finding algorithms (BFS, DFS, Dijkstra's, and A*) are not fundamentally different and can be implemented in a universal way. However, it was challenging to showcase significant performance differences among these algorithms in that project. my previous endeavors In this article, I aim to use improved test data and design something visually exciting. While the Yandex Contest task mentioned earlier aligns well with my goals, I will not solve their specific problem here since it heavily relies on their test system, which is currently unavailable. Instead, I will extract general ideas for input parameters from that contest and create my own implementation. Imaginary world Imagine a technically advanced and innovative city where the future has arrived long ago. In this city, the majority of orders are delivered by courier robots, and it has become a rarity for a person to deliver an order from a cafe. In this task, we invite you to participate in finding optimal routes to deliver orders efficiently. Let's envision the city as an N × N map. For simplicity, we assume that each robot occupies exactly one cell, and each cell can either be passable or not for the robots. In one step, a robot can move in any of the four cardinal directions (up, down, left, or right) if the target cell is free. And I'm of the original task: ignoring the rest At the beginning of the test, you need to output the number of robots you want to use to deliver orders and their initial coordinates. The construction of each robot will cost Costc rubles. Next, T iterations of the simulation will be performed. One iteration represents one virtual minute and consists of 60 seconds. At each iteration, your program will be given the number of new orders, and in response, the program should tell you what actions each robot performs (60 actions per robot). For each successfully delivered order, you will receive max(0, MaxTips - DeliveryTime) dollars in tips, where MaxTips is the maximum number of tips for one order, and DeliveryTime is the time from the moment the order appeared to its delivery in seconds. The total number of points that you earn in one test is calculated by the formula TotalTips - R × Costc, where TotalTips is the total number of tips earned, R is the number of robots used, Costc is the cost of building one robot. The Costc and MaxTips values are set in each test. If you earned less tips than you spent on making robots, your total points will be 0. You will also receive 0 points for the test if you perform any incorrect action. Input The program uses standard input to read the parameters. This approach allows us to specify test data of various complexities using input files. The first line of input contains three natural numbers: N (the size of the city map), MaxTips (the maximum number of tips per order), and Costc (the cost of building one robot). I ignored both MaxTips and Costc parameters for my first implementation and maybe will consider that in the future. Following that, each of the next N lines contains N characters representing the city map. Each string can consist of two types of characters: '#' - indicates a cell occupied by an obstacle. '.' - indicates a free space. Next, you will be provided with two natural numbers: T and D (T ≤ 100,000, D ≤ 10,000,000). T represents the number of interaction iterations, and D represents the total number of orders. Output Your task is to visualize the map and the optimal routes using the SFML graphics library. Modelling the maps I'm fond of maps represented as a grid of cells. Thus, I prefer to render all the results and map them as a grid on cell by cell basis. There is also the option to execute path search right on the grid without using any additional data structure (and I have implemented this as well for learning purposes: see in code). But because of a grid, it is easy to represent a map as a graph in one way or another. I prefer to use an adjacency list of cells for most of the algorithms like BFS, Dijkstra's, and A-Star. For algorithms like Bellman-Ford, it may make sense to use an Edges List instead of an Adjacency List. That's why if you explore the codebase, then you will find all of it, and they all are working examples. To split the logic and responsibility, I have a entity that is responsible for executing path finding according to the orders and tasks configuration that is specified via the file and related map files. Navigator App Config looks like this: App Config {
    "font": "../../data/arial.ttf",
    "map": "../../data/maps/test_29_yandex_weighten_real_map",
    "shadow": false,
    "map_": "../../data/maps/test_08_low_res_simple_map",
    "map__": "../../data/maps/test_10",
    "map___": "../../data/maps/test_07_partially_blocked_map",
    ... Note that "map_” "map__" etc. are not really configuration properties. They are ignored during the application run. Since there is no way to comment on the part of the JSON file, I use underlining in the property name so it can stay in the config file but not be used. looks like this: The map file 25 50 150
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###.......#####.......###
######.###########.######
#########################
#########################
#########################
#########################
2 4
2
6 6 4 20 This is one of the simplest examples that contain either blocked or not blocked cells. I have prepared a lot of various examples of input parameters and test data. Starting from very small parts that let you debug and learn the code, finishing with a huge piece of map (from the real existing city) that allows us to measure the performance of a Graph algorithm. How do we draw such maps? When a map contains only cells with binary state (either blocked or non-blocked), this basically means that any edge of a graph either exists or not. To find a path in the graph, we have to represent it efficiently. Like in my previous post, I have used an with the relationship as Vector[NodeId]->points to->Vector[Neighbour Nodes]: adjacency list typedef std::vector<std::vector<std::shared_ptr<Cell>>> Graph; When we exploring grids it's not really necessary to use graphs at all. We are capable to traverse grid using BFS/DFS algorithms cell by cell without thinking about edges. See method for example. _GetPathByBFSOnGrid First, the initialization code reads the file and converts it into row by row and column by column: the grid bool RectangularMap::LoadMap(const std::string& filepath, bool shadow)
{
...
  // Fill the grid.
  _verticesNumber = 0;
  for (int row = 0; row < _height; row++)
  {
    ...
    for (int col = 0; col < _width; col++)
    {
      int x = col;
      int y = row;
      if (line[col] == BLOCK_CELL)
      {
        // Create a shared pointer here to safely pass pointers between the classes.
        _grid[row][col] = std::make_shared<Cell>(x, y, line[col], blockColor, shadow, _scaleFactor);
      }
      else
      {
        ...
      }
    }
  }

  // Make a graph
  InitialiseGraph();
...
} Then, it creates an actual graph as : an adjacency list void RectangularMap::InitialiseGraph()
{
  MapBase::InitialiseGraph();
  ...
  unordered_set<int> visited;

  for (int rr = 0; rr < _grid.size(); rr++)
  {
    for (int cc = 0; cc < _grid[rr].size(); cc++)
    {
      if (_grid[rr][cc]->GetId() > -1)
      {
        for (int i = 0; i < 4; i++)
        {
          int r = rr + dr[i];
          int c = cc + dc[i];

          if (r >= 0 && c >= 0 && r < _width && c < _height &&
              _grid[r][c]->GetId() > -1)
          {
            if (_isNegativeWeighten)
            {
              ...
            }
            else
            {
              _adjacencyList[_grid[rr][cc]->GetId()].push_back(_grid[r][c]);
            }
          }
        }
      }
    }
  }
} Grid representation is useful to draw on the screen using the SFML library. We can draw (this is exactly what I do for small maps): by creating a geometric object ...
for (int j = _visibleTopLeftY; j < _visibleBottomRightY; j++)
{
  for (int i = _visibleTopLeftX; i < _visibleBottomRightX; i++)
  {
    _grid[j][i]->Draw(_window, _scaleFactor);
  }
}
...
sf::RectangleShape tile;
tile.setSize(sf::Vector2f(_cellSize - 5, _cellSize - 5));
tile.setPosition(sf::Vector2f(_x * _cellSize, _y * _cellSize));
tile.setFillColor(_color);
window.draw(tile); Or we can do it for larger maps: efficiently pixel by pixel sf::Uint8* pixels = new sf::Uint8[_width * _height * 4];

for (int j = _visibleTopLeftY; j < _visibleBottomRightY; j++)
{
  for (int i = _visibleTopLeftX; i < _visibleBottomRightX; i++)
  {
    int index = (_grid[j][i]->GetY() * _width + _grid[j][i]->GetX());

    sf::Color color = _grid[j][i]->GetColor();
    pixels[index * 4] = color.r;
    pixels[index * 4 + 1] = color.g;
    pixels[index * 4 + 2] = color.b;
    pixels[index * 4 + 3] = color.a;
  }
}

sf::Texture texture;
texture.create(_width, _height);
texture.update(pixels);
sf::Sprite sprite;
sprite.setTexture(texture);
sprite.setScale(cellSize, cellSize);
_window.draw(sprite); Finally, let's see what a map defined by file would look like. Originally, the file defined this: test_25_xmax ..............C.................
..............#.................
.............###................
............#####...............
...........#######..............
..........##1###2##.............
.........###########............
........##3######4###...........
.......###############..........
......#################.........
.....###################........
....#####################.......
.............###................
.............###................
.............###................ And a map renderred with SFML looks like this: Because I wanted all of that to be controlled by the user with the keyboard, I left all the user-behavior logic in the . I like to call it “Controller” logic. main.cpp SFML library makes it very easy to handle keyboard events: while (window.isOpen())
{
  Event event;
  while (window.pollEvent(event))
  {
    if (event.type == Event::Closed)
      window.close();

    if (event.type == Event::KeyPressed && event.key.code == Keyboard::Space)
    {
      ... Do what you need here
    }
  }
} The main idea is for user triggers (press of a SPACE button) to read the map file and rendering the map, and then by a second trigger (second press of a SPACE button) to load the routing task and calculate the shortest path between two points on the map: ...
if (navigator->IsReady())
{
  navigator->Navigate(); // Finding route between two points
}
else
{
  if (map->IsReady()) // Second SPACE press runs the routing
  {
    skipReRendering = true;
    if (navigator->LoadTasks(filepath))
    {
      navigator->SetMap(map);
    }
  }
  else // Load and draw map
  {
    drawLoading(window, font);
    if (!map->LoadMap(filepath, shadowed))
    {
      return 0;
    }
    drawProcessing(window, font);
  }
}
... We need to go deeper I wanted to play with more Graph algorithms, and they all have their limitations, so I decided to implement multi-color maps that can be represented by multi-weighted graphs. Every cell is colored, and the color means that the edge not only exists but also applies some weight (or fee, or fine, you name it). So, the edge might be blocked, half blocked, not blocked, ... you got the idea. Thus, I have implemented multi-color maps that look more joyful and look like a game-ready (example from file ): test_31_multi_weight_graph_map Some of the configuration files contain more complex maps from really existing cities, like : test_29_yandex_weighten_real_map As a challenge, now we should handle maps with very flexible configuration. essentially contains a lot of logic inside, including all the graph algorithms and even more than needed (because I like to play with things, even if it's not particularly useful for now). RectangularMap.cpp I have implemented , , , algorithms, and a number of additional "utility" algorithms like Topological Sort, Single Source Path, that are not useful for the current application state (because they work on Directly Acyclic Graphs, which are not type of Graphs I currently use), but I have some ideas to use it in future improvements. BFS#Line 598 Dijkstra#Line 299 A-Star#Line 356 Bellman-Ford#Line 428 I didn't polish all the code and didn't get it ideal enough, but it allows me (and, I hope, will allow you) to play with the code and compare performance metrics. Sorry about some commented lines here and there, maybe some dirty code...it's all way of learning :). To grasp an idea of what's inside, I recommend you review the . RectangularMap.h There are also some fun features, like a Focus feature that allows one to render only a particular part of a map. It changes focus by re-rendering the necessary part using the when the user presses the PgDown or PgUp buttons. It is pretty easy to improve this feature and implement "Zoom" functionality. Take it as a homework, if you like it. Observer pattern Focus feature with map file in work: test_29_yandex_weighten_real_map Classes diagram looks like this: Run and play I believe the most joyful part is just running this little application is playing with variations of its configuration and algorithms. You can do a lot of experiments by using various map files as input parameters with different test data as well as change the logic in the code. After starting, you need to press SPACE an application will render a map according to the configuration file, and it makes a lot of sense to start exploring from the simplest test cases and moving forward to the most complex ones. Pressing SPACE one more time executes the routing algorithms and finds the path between the start and the nearest order. BTW, It's not yet done, but it is easy to implement reading all the rest of the orders available in map configuration files and execute pathfinding to all of them. Here is the route found on the map defined by file : test_18_yandex_super_high_res It is also capable of finding routes in the maps that simulate existing cities, like : test_29_yandex_weighten_real_map Finding efficient paths between two coordinates becomes challenging for algorithms like BFS but can be easily done by A-star. Based on the cells found in the map configuration files, the application will treat the map as a weighted or non-weighted graph and will select the right algorithm for it (and you can easily change this as well). It's easy to see the difference between BFS and A-Star performance: Final words With this, I want to leave you alone and let you play with these code examples. I hope you will find it fascinating and will learn a lot from it. Stay tuned! Links JPS+: Over 100x Faster than A* by Steve Rabin A* Optimizations and Improvements by Lucho Suaya https://hackernoon.com/bfs-dfs-dijkstra-and-a-star-are-basically-the-same-algorithm-ill-show-you-why My blog https://antonyarkov.substack.com/ Also published . here

Graph Traversal Algorithms: Visualizing Performance Variations in Route Finding Algorithms

198 Stories To Learn About Technology

164 Stories To Learn About Nlp

130 Stories To Learn About Low Code

Welcome to the round 4 winners announcement for the Mobile Debugging Writing Contest by Sentry! For those reading about it for the first time - No worries! With two more rounds left, you still stand a chance to win from a $1,000 monthly prize pool. To enter the contest, simply submit a story related to #mobiledebugging and app testing. Make sure to add the #mobiledebugging tag in your story settings! #MobileDebugging: Some ideas to help you get started Do you remember those support tickets from customers writing in to report their application crashing or freezing?
Was it right after a new release?
Were you notified by a monitoring tool?
Did a problem arise from a 3rd party library?
Did a problem occur when receiving an unexpected HTTP response? Enter the #MobileDebugging contest using this template. Without further ado, let’s look at the nominees and winners!!! The Mobile Debugging Writing Contest: Round 4 Nominees 🔥 As usual, we’ve picked our winners by selecting the top story submissions that generated the most traffic. HackerNoon’s editorial team then voted for the top three winners.Here is the list of nominees: Blockchain App Debugging: Bugs You Need to Be Aware Of by @induction.


7 Proven Practices to Boost Development Speed and Project Quality by @dsitdikov.


ChatGPT for Debugging: 10 Practical Use Cases by @mikeynyzw.


A Guide to Local Debugging with Datadog Agent by @hacker5281989.


The 1990's Called, They Want Their Bug Reporting Process Back by @danigrant.


How I Debugged a Mobile Development Tutorial App by @oliveremeka.


Mastering Mobile App Development: Overcoming UI Challenges and Navigation Hurdles Like a Pro by @samiranmondal.


The Myths and Realities of Bug-Free Code by @dhanushnehru.
#MobileDebugging: Round 4 Winners 🔥🔥🔥 The first place and the winner of the most read award go to @induction’s story with 1,607 reads: https://hackernoon.com/blockchain-app-debugging-bugs-you-need-to-be-aware-of?embedable=true Debugging blockchain apps is a critical step to ensure their functionality, reliability, compatibility, and security. By identifying potential attack vectors, testing on private and public blockchain networks, and staying up-to-date on blockchain documentation, developers can create reliable and secure blockchain apps that function as intended for users from all around the world. Congratulations @induction, on taking the first place and winning $600! Well-deserved 🔥 In the second place, we have @mikeynyzw’s story on practical uses of ChatGPT for debugging: https://hackernoon.com/chatgpt-for-debugging-10-practical-use-cases?embedable=true With ChatGPT, you can ask what an error means, and walla, it gives you an answer, no clicking on links and sorting through comments. This cutting-edge AI technology is changing the game for software developers, allowing them to write code faster, better, and with greater ease. Congratulations @mikeynyzw! You have won $300! Last but not least, the third place goes to @danigrant’s story on Bug Reporting: https://hackernoon.com/the-1990s-called-they-want-their-bug-reporting-process-back?embedable=true We’ve all experienced the frustration of dealing with unclear bug reports that lack the necessary context to solve the issue. That's why a year ago, a few of us started imagining a better way. What if we could build a new tool that modernizes bug reporting and could solve the problem of unclear bug reports, reduce the need for back-and-forth communication, and save engineers' time and energy? Congratulations, Dani, on winning $100!! Congratulations again to all the winners! We will contact you all shortly. Till then, keep calm and keep on submitting #mobiledebugging stories! Visit contests.hackernoon.com to learn more about currently running contests. Welcome to the round 4 winners announcement for the Mobile Debugging Writing Contest by Sentry ! For those reading about it for the first time - No worries! With two more rounds left, you still stand a chance to win from a $1,000 monthly prize pool. the Mobile Debugging Writing Contest Sentry To enter the contest, simply submit a story related to #mobiledebugging and app testing. Make sure to add the #mobiledebugging tag in your story settings! #mobiledebugging #MobileDebugging: Some ideas to help you get started Do you remember those support tickets from customers writing in to report their application crashing or freezing? Was it right after a new release? Were you notified by a monitoring tool? Did a problem arise from a 3rd party library? Did a problem occur when receiving an unexpected HTTP response? Do you remember those support tickets from customers writing in to report their application crashing or freezing? Was it right after a new release? Were you notified by a monitoring tool? Did a problem arise from a 3rd party library? Did a problem occur when receiving an unexpected HTTP response? Enter the #MobileDebugging contest using this template. Enter the #MobileDebugging contest using this template . Enter the #MobileDebugging contest using this template Enter the #MobileDebugging contest using this template Without further ado, let’s look at the nominees and winners!!! The Mobile Debugging Writing Contest: Round 4 Nominees 🔥 The Mobile Debugging Writing Contest: Round 4 Nominees 🔥 As usual, we’ve picked our winners by selecting the top story submissions that generated the most traffic. HackerNoon’s editorial team then voted for the top three winners. Here is the list of nominees: Blockchain App Debugging: Bugs You Need to Be Aware Of by @induction. 7 Proven Practices to Boost Development Speed and Project Quality by @dsitdikov. ChatGPT for Debugging: 10 Practical Use Cases by @mikeynyzw. A Guide to Local Debugging with Datadog Agent by @hacker5281989. The 1990's Called, They Want Their Bug Reporting Process Back by @danigrant. How I Debugged a Mobile Development Tutorial App by @oliveremeka. Mastering Mobile App Development: Overcoming UI Challenges and Navigation Hurdles Like a Pro by @samiranmondal. The Myths and Realities of Bug-Free Code by @dhanushnehru.
#MobileDebugging: Round 4 Winners 🔥🔥🔥 Blockchain App Debugging: Bugs You Need to Be Aware Of by @induction. Blockchain App Debugging: Bugs You Need to Be Aware Of by @induction . Blockchain App Debugging: Bugs You Need to Be Aware @induction 7 Proven Practices to Boost Development Speed and Project Quality by @dsitdikov. 7 Proven Practices to Boost Development Speed and Project Quality by @dsitdikov . 7 Proven Practices to Boost Development Speed and Project Quality @dsitdikov ChatGPT for Debugging: 10 Practical Use Cases by @mikeynyzw. ChatGPT for Debugging: 10 Practical Use Cases by @mikeynyzw . ChatGPT for Debugging: 10 Practical Use Cases @mikeynyzw A Guide to Local Debugging with Datadog Agent by @hacker5281989. A Guide to Local Debugging with Datadog Agent by @hacker5281989 . A Guide to Local Debugging with Datadog Agent @hacker5281989 The 1990's Called, They Want Their Bug Reporting Process Back by @danigrant. The 1990's Called, They Want Their Bug Reporting Process Back by @danigrant . The 1990's Called, They Want Their Bug Reporting Process Back @danigrant How I Debugged a Mobile Development Tutorial App by @oliveremeka. How I Debugged a Mobile Development Tutorial App by @oliveremeka . How I Debugged a Mobile Development Tutorial App @oliveremeka Mastering Mobile App Development: Overcoming UI Challenges and Navigation Hurdles Like a Pro by @samiranmondal. Mastering Mobile App Development: Overcoming UI Challenges and Navigation Hurdles Like a Pro by @samiranmondal . Mastering Mobile App Development: Overcoming UI Challenges and Navigation Hurdles Like a Pro @samiranmondal The Myths and Realities of Bug-Free Code by @dhanushnehru. #MobileDebugging: Round 4 Winners 🔥🔥🔥 The Myths and Realities of Bug-Free Code by @dhanushnehru . The Myths and Realities of Bug-Free Code @dhanushnehru #MobileDebugging: Round 4 Winners 🔥🔥🔥 The first place and the winner of the most read award go to @induction’s story with 1,607 reads: The first place and the winner of the most read award go to @induction ’s story with 1,607 reads: @induction https://hackernoon.com/blockchain-app-debugging-bugs-you-need-to-be-aware-of?embedable=true https://hackernoon.com/blockchain-app-debugging-bugs-you-need-to-be-aware-of?embedable=true Debugging blockchain apps is a critical step to ensure their functionality, reliability, compatibility, and security. By identifying potential attack vectors, testing on private and public blockchain networks, and staying up-to-date on blockchain documentation, developers can create reliable and secure blockchain apps that function as intended for users from all around the world. Debugging blockchain apps is a critical step to ensure their functionality, reliability, compatibility, and security. By identifying potential attack vectors, testing on private and public blockchain networks, and staying up-to-date on blockchain documentation, developers can create reliable and secure blockchain apps that function as intended for users from all around the world. Congratulations @induction , on taking the first place and winning $600! Well-deserved 🔥 @induction In the second place, we have @mikeynyzw’s story on practical uses of ChatGPT for debugging: In the second place, we have @mikeynyzw ’s story on practical uses of ChatGPT for debugging: @mikeynyzw https://hackernoon.com/chatgpt-for-debugging-10-practical-use-cases?embedable=true https://hackernoon.com/chatgpt-for-debugging-10-practical-use-cases?embedable=true With ChatGPT, you can ask what an error means, and walla, it gives you an answer, no clicking on links and sorting through comments. This cutting-edge AI technology is changing the game for software developers, allowing them to write code faster, better, and with greater ease. With ChatGPT, you can ask what an error means, and walla, it gives you an answer, no clicking on links and sorting through comments. This cutting-edge AI technology is changing the game for software developers, allowing them to write code faster, better, and with greater ease. Congratulations @mikeynyzw ! You have won $300! @mikeynyzw Last but not least, the third place goes to @danigrant’s story on Bug Reporting: Last but not least, the third place goes to @danigrant ’s story on Bug Reporting: @danigrant https://hackernoon.com/the-1990s-called-they-want-their-bug-reporting-process-back?embedable=true https://hackernoon.com/the-1990s-called-they-want-their-bug-reporting-process-back?embedable=true We’ve all experienced the frustration of dealing with unclear bug reports that lack the necessary context to solve the issue. That's why a year ago, a few of us started imagining a better way. What if we could build a new tool that modernizes bug reporting and could solve the problem of unclear bug reports, reduce the need for back-and-forth communication, and save engineers' time and energy? We’ve all experienced the frustration of dealing with unclear bug reports that lack the necessary context to solve the issue. That's why a year ago, a few of us started imagining a better way. What if we could build a new tool that modernizes bug reporting and could solve the problem of unclear bug reports, reduce the need for back-and-forth communication, and save engineers' time and energy? Congratulations, Dani, on winning $100!! Congratulations again to all the winners! We will contact you all shortly. Till then, keep calm and keep on submitting #mobiledebugging stories! Visit contests.hackernoon.com to learn more about currently running contests. #mobiledebugging contests.hackernoon.com

The #MobileDebugging Writing Contest: Round 4 Results Announced!

#MobileDebugging রচনা প্রতিযোগিতা: রাউন্ড 4 ফলাফল ঘোষণা করা হয়েছে!

Der #MobileDebugging-Schreibwettbewerb: Ergebnisse der vierten Runde bekannt gegeben!

El concurso de escritura #MobileDebugging: ¡Resultados de la ronda 4 anunciados!

Concours d'écriture #MobileDebugging : résultats de la 4e manche annoncés !

#MobileDebugging लेखन प्रतियोगिता: राउंड 4 के परिणाम घोषित!

#MobileDebugging ライティング コンテスト: 第 4 ラウンドの結果が発表されました!

#MobileDebugging 글쓰기 콘테스트: 4라운드 결과가 발표되었습니다!

O Concurso de Redação #MobileDebugging: Resultados da 4ª Rodada Anunciados!

#MobilHata Ayıklama Yazma Yarışması: 4. Tur Sonuçları Açıklandı!

Cuộc thi viết #MobileDebugging: Đã công bố kết quả vòng 4!

#MobileDebugging 写作比赛：第 4 轮结果公布！

Table of contents What is Vite? How does Vite work? Why use Vite over CRA? Performance Hot Module Replacement(HMR) Native ECMAscript module support Rich Features Prerequisites Creating a Project with Vite Conclusion Create React App (CRA) has long been the go-to tool for many developers of all skill levels when it comes to constructing a React app (beginners, intermediate and even experts). It does, however, have some significant drawbacks, which are speed and performance. It is well known that CRA can be somewhat slow while building a project and setting up a development server, requiring around 5-10 minutes (depending on factors like hard disks, and internet connectivity issues). Time typically adds up, which is why I'm going to introduce you to a tool called . Vite is a build tool similar to Webpack (CRA uses Webpack beneath the hood). More information is available ).) Vite here In this article, I'll walk you through the process of building a React App with Vite. You will learn the differences between CRA and Vite, as well as some of its features and benefits, and also how to create a React App with Vite. What is Vite? Vite, pronounced , like "veet" is the next generation in frontend tooling. It focuses on speed and performance by improving the development experience for modern web projects. /vit/ Vite is created by Evan You, who is the creator of Vue.js, but it's not a Vue-only tool. It can be used for React, Preact, Svelte, Vue, Vanilla JS, and LitElements. It consists of two major parts: A dev server which provides support for Hot Module Replacement (HMR) for updating modules during the execution of the application. When changes are made to the source code of an application, only the changes are updated, rather than the entire application. This feature helps speed up development time. A build command that bundles your code with Rollup, pre-configured to output highly optimised static assets for production. How does Vite work? At its core, Vite does 2 things: Serve your code locally during development. Bundle your Javascript, CSS and other assets together for production. There are other tools(bundlers) that do the same thing, such as webpack, Parcel and Rollup, so what makes Vite different? The problem with the tools mentioned above is that they have to build everything on every save, and if you have a very large application, that could take several minutes every time you save, even with Hot reloading in some frameworks, the update speed gets significantly slower as you add more code and dependencies to the app. Vite has taken a different approach to this, kind of a reverse approach. Vite starts the server right away, takes the dependencies that don't change often, and pre-bundles them using . esbuild is a Javascript build tool written in Go, which pre-bundles dependencies 10-100 times faster than Javascript-based bundlers. Esbuild Let's take a look at the illustrations below to get a better understanding of how it works. The above diagram represents a traditional bundle-based development server, where we have an entry point, the possible routes and all the modules, which are then bundled together, and then the development server is ready. Vite, on the other hand, uses route-based code-splitting to figure out what parts of the code actually need to be loaded, and doesn't have to pre-bundle everything. Vite serves the source code using native ES Module support in modern browsers. This lets the browser take the job of bundling in development, which consequently makes your code to load instantly, no matter how large the app is. It also supports Hot Module Replacement for an extremely fast feedback loop during development. When building for production, Vite uses Rollup under the hood, so you don't have to worry about configuring it. Why use Vite over CRA? You may be asking why you should use Vite now that we've covered what it is and how it works. We've gone through a few benefits in the previous section, so I will just highlight them here. Performance Pre-bundling with ESbuild makes it 10 to 100 times faster than using any other JS bundler. This helps improve page speed and convert CommonJS / UMD modules to ESM. Hot Module Replacement(HMR) Vite uses HMR capabilities to keep track of changes in your application without reloading the full page. With the HMR API, the browser will only load the modified section of the page and still retain the application's state. You don't need to manually set these up - when you create an app via , the selected templates would have these pre-configured for you already. create-vite Native ECMAscript module support Vite supports ES modules natively. It allows you to develop for the browser with bare imports like Typescript and it converts them into properly versioned imports on build. Rich Features Out-of-the-box support for TypeScript, JSX, CSS and more. Check out other Features . here Prerequisites Before using Vite, you'll need a couple of prerequisites: or higher Node.js version 14.18 Package manager - or Npm Yarn Compatible browser for development The third requirement is a browser that supports . You can check to see if your browser is supported by visiting: . dynamic imports caniuse.com/es6-module-dynamic-import Most modern browsers are supported, with the exceptions being Internet Explorer, Opera Mini, and the Baidu browsers. But if you're on a somewhat recent version of Chrome, Edge, Safari, or Firefox, you should be all set. Creating a Project with Vite To application, open your terminal and navigate to the folder where you want to save the Vite program. Then run this command: create a Vite npm create vite@latest You'll be prompted to select a framework and a variant(template). In our case, we'll be using React, so select React. You can also directly specify the template you want to use and the project name in one single line: npm create vite@latest my-react-app --template react Note: is the name of the Vite application that we want to create. You can change it to whatever name you prefer. my-react-app Next, run the following commands in the terminal cd my-react-app
npm install
npm run dev Moving on... Running the above command will start the development server. Then open your browser and enter . http://localhost:3000 You should see a React logo with a counter and a button, as shown below: Conclusion There we go! We've looked at what Vite is, how it works, and some of its features. We also learned how to set up applications using Vite. For this project, the create vite app command was set up in 10 seconds. After which I ran to install dependencies, which took 35 seconds. So, all in all, the project was set up in 45 seconds. Which I'm sure you'll agree is way faster than CRA ;-) npm install I would love to hear your thoughts in the comments section, and if you enjoyed this post or found it insightful, kindly share it with your friends and colleagues. Also, consider subscribing to my blog. Till next time, thanks for reading, and happy coding! Before you go, here are some to check out. community-maintained templates Also published here.

Why Vite is Better Than Create-React-App (CRA)

👋 Welcome to HackerNoon's Tech Company News Brief, a weekly collection of tech goodness that combines HackerNoon's proprietary data with internet trends to determine which companies are rising and falling in the public consciousness. Tell your friends and family to subscribe here. Imagine having to sign up for a new phone app using Facebook only to find that your login information has been stolen. Apparently, that's what happened to ~1 million Facebook users whose login information may have been compromised via malicious apps. While they might look and feel authentic, at least at first glance, Facebook listed a number of red flags that users may have ignored or been unaware of. The social media giant has notified affectees and also shared details of the 400 malicious apps that were stealing users' information to Apple Inc. and Google parent Alphabet Inc. so they're removed from their app stores. Outside of the security breach, the internet was busy discussing Facebook's lofty attempts at bringing the metaverse to the masses. The company's metaverse app Horizon Worlds is so bad that even Facebook's own employees don’t like it, The Verge reports. What's worse is that the exec in charge of building and growing Horizon Worlds is forcing employees to plug into the app and "fall in love" with it. It's still far too early to tell what the metaverse will evolve into, and as this New York Times reporter correctly points out, explaining the metaverse through the lens of Horizon Worlds would be like describing the internet from the lens of AOL chatrooms (for the non-Boomers, AOL was an instant messenger that was eventually replaced by social media). Still, the reporter's overall impression of Horizon Worlds was positive (far more than Facebook's own employees) even though she met a lot more children than she had anticipated. Facebook founder Mark Zuckerberg is already betting his all on the potential of the metaverse, and with the Connect event right around the corner, we'll get to hear more about the future of the industry from the CEO himself. Facebook was trending at the top of this week's Tech Rankings. 👑 Powerful Chip Lineup Not Enough to Save AMD Revenues 💵 AMD's newly-released Ryzen 7000 chips may have the lead on performance over Intel's 12th generation processors, but the celebration was short lived. The Santa Clara-based company informed markets this past Thursday that it may have been a bit too optimistic about its sales forecast, issuing a course correction around the tune of $1 billion. With the COVID-19 pandemic virtually over and people no longer confined to their homes, businesses are reporting earnings the way they should have been before the coronavirus forced the entire world to a standstill. AMD and its peers, Nvidia and Intel, benefited greatly from the lockdown when consumers bought or upgraded their machines for gaming or work, resulting in massive sales for the tech companies. Now, consumers aren't that inclined to splurge, raising fears of a tech downturn that could last a while. Nvidia was trending #57 this week while Intel was trending at the #64 spot. Roblox Gets Flak 👨‍⚖️ Roblox too benefitted greatly from COVID-19-related lockdowns but was in the news this week for a wholly different reason. A lawsuit filed in San Francisco accuses the youth-centered gaming platform of enabling the sexual and financial exploitation of an underage girl by adult men, causing the victim to attempt suicide. Now, if you've followed Roblox for any length of time, you know that its platform attracts all manners of pedophiles who try to groom a young audience. So the lawsuit itself is not surprising; however, it does go a step further by also holding Discord, Snapchat, and Meta responsible for enabling the exploitation and the overall decline in the victim's mental health. Roblox ranked #2 this week. F*ck pedos. At least One Tech Behemoth Gets It (Maybe) ⛅ Amazon is taking climate change seriously. At least, enough to announce a €1 billion plan to upgrade its truck fleet in Europe over the next five years, Reuters reports. The investment will see the world's largest eCommerce business more than triple its electric van fleet in Europe to 10,000 vehicles while investing in thousands of charger stations at facilities across Europe. It will also invest in doubling its European network of "micro-mobility" hubs from more than 20 cities today, Reuters reported. Amazon ranked #3 this week. And that’s a wrap! Thanks for reading Tech Company News Brief Issue #20! See y’all next week. PEACE ☮️ — Sheharyar Khan, Editor, Business Tech @ HackerNoon 👋 Welcome to HackerNoon's Tech Company News Brief, a weekly collection of tech goodness that combines HackerNoon's proprietary data with internet trends to determine which companies are rising and falling in the public consciousness. Tell your friends and family to subscribe here. Welcome to HackerNoon's Tech Company News Brief, a weekly collection of tech goodness that combines HackerNoon's proprietary data with internet trends to determine which companies are rising and falling in the public consciousness. Tell your friends and family to subscribe here . here here Imagine having to sign up for a new phone app using Facebook only to find that your login information has been stolen. Apparently, that's what happened to ~ 1 million Facebook users whose login information may have been compromised via malicious apps . Facebook Facebook 1 million Facebook users 1 million Facebook users malicious apps malicious apps While they might look and feel authentic, at least at first glance, Facebook listed a number of red flags that users may have ignored or been unaware of. The social media giant has notified affectees and also shared details of the 400 malicious apps that were stealing users' information to Apple Inc. and Google parent Alphabet Inc. so they're removed from their app stores. listed listed Outside of the security breach, the internet was busy discussing Facebook's lofty attempts at bringing the metaverse to the masses. The company's metaverse app Horizon Worlds is so bad that even Facebook's own employees don’t like it, The Verge reports. What's worse is that the exec in charge of building and growing Horizon Worlds is forcing employees to plug into the app and " fall in love " with it. The Verge The Verge fall in love fall in love It's still far too early to tell what the metaverse will evolve into, and as this New York Times reporter correctly points out, explaining the metaverse through the lens of Horizon Worlds would be like describing the internet from the lens of AOL chatrooms (for the non-Boomers, AOL was an instant messenger that was eventually replaced by social media). Still, the reporter's overall impression of Horizon Worlds was positive (far more than Facebook's own employees) even though she met a lot more children than she had anticipated. far too early far too early New York Times New York Times New York Times reporter reporter lot more children lot more children Facebook founder Mark Zuckerberg is already betting his all on the potential of the metaverse, and with the Connect event right around the corner, we'll get to hear more about the future of the industry from the CEO himself. Connect Connect Facebook was trending at the top of this week's Tech Rankings . 👑 Tech Rankings Tech Rankings Powerful Chip Lineup Not Enough to Save AMD Revenues 💵 Powerful Chip Lineup Not Enough to Save AMD Revenues AMD 's newly-released Ryzen 7000 chips may have the lead on performance over Intel 's 12th generation processors, but the celebration was short lived. The Santa Clara-based company informed markets this past Thursday that it may have been a bit too optimistic about its sales forecast, issuing a course correction around the tune of $1 billion. AMD AMD lead on performance lead on performance Intel Intel course correction course correction With the COVID-19 pandemic virtually over and people no longer confined to their homes, businesses are reporting earnings the way they should have been before the coronavirus forced the entire world to a standstill. AMD and its peers, Nvidia and Intel, benefited greatly from the lockdown when consumers bought or upgraded their machines for gaming or work, resulting in massive sales for the tech companies. Now, consumers aren't that inclined to splurge, raising fears of a tech downturn that could last a while. Nvidia Nvidia bought or upgraded their machines bought or upgraded their machines massive sales massive sales aren't that inclined aren't that inclined raising fears raising fears a tech downturn a tech downturn Nvidia was trending #57 this week while Intel was trending at the #64 spot. Roblox Gets Flak 👨‍⚖️ Roblox Gets Flak Roblox too benefitted greatly from COVID-19-related lockdowns but was in the news this week for a wholly different reason. A lawsuit filed in San Francisco accuses the youth-centered gaming platform of enabling the sexual and financial exploitation of an underage girl by adult men, causing the victim to attempt suicide . Roblox Roblox benefitted greatly benefitted greatly accuses accuses attempt suicide attempt suicide Now, if you've followed Roblox for any length of time, you know that its platform attracts all manners of pedophiles who try to groom a young audience. So the lawsuit itself is not surprising; however, it does go a step further by also holding Discord, Snapchat, and Meta responsible for enabling the exploitation and the overall decline in the victim's mental health. you've followed Roblox you've followed Roblox all manners of pedophiles all manners of pedophiles Roblox ranked #2 this week. F*ck pedos. At least One Tech Behemoth Gets It (Maybe) ⛅ At least One Tech Behemoth Gets It (Maybe) Amazon is taking climate change seriously. At least, enough to announce a €1 billion plan to upgrade its truck fleet in Europe over the next five years, Reuters reports . Amazon Amazon reports reports The investment will see the world's largest eCommerce business more than triple its electric van fleet in Europe to 10,000 vehicles while investing in thousands of charger stations at facilities across Europe. It will also invest in doubling its European network of "micro-mobility" hubs from more than 20 cities today, Reuters reported. Amazon ranked #3 this week. And that’s a wrap! Thanks for reading Tech Company News Brief Issue #20! See y’all next week. PEACE ☮️ And that’s a wrap! Thanks for reading Tech Company News Brief Issue #20! See y’all next week. PEACE — Sheharyar Khan, Editor, Business Tech @ HackerNoon — Sheharyar Khan, Editor, Business Tech @ HackerNoon

Roblox in Trouble

Roblox en problemas

Roblox en difficulté

मुसीबत में Roblox

困っているロブロックス

Roblox em apuros

Roblox gặp rắc rối

麻烦中的 Roblox

Do we even need user authentication It’s 2022 the Web is nothing like the Web 20 years ago. Keeping track of user data is a must and this is achieved through user authentication. There are many ways to authenticate users one of which is using a username and password and storing users’ credentials in a database of your own which is no easy task to accomplish. Another way to do it is OAuth or simply using a third-party authentication provider like Google for example. In this blog, I will be introducing you to Faceio’s face recognition authentication which is an amazing way to log in users to your systems as well I will be building a simple app to showcase the way to integrate this mind-blowing technology in a react application. So tighten your belts there will be plenty to cover. Why facial recognition The first reason that makes this technology so attractive for a business is the fact that AI-powered technologies in which facial recognition makes part, are just mind-blowing. My self I wouldn’t believe it works before making my own app that uses it. Just the fact that your website uses face recognition will make users want to visit your website and try your authentication system. The second reason why you should consider face recognition is how easy it is to integrate this technology into your application. And to showcase this, we will be building a react application with FaceIO’s facial recognition from our mobile phones which seems to be unreal but this became possible with the fio.js library which takes all the heavy lifting for us we can easily use face recognition. The third reason is simply that this authentication method is very user friendly so you don’t have to remember passwords or else although you can add two-layer user protection which is a pin in faceio’s case and also as a user you just have to let the camera scan your face and you’re done. User security with face recognition authentication From a user standpoint, it doesn’t matter how great your application is if your data isn’t secure. But facial recognition is a very secure way to authenticate your users. Why? Actually for many reasons. First comes Faceio’s compliance with broadly applicable privacy laws such as the GDPR, CCPA, and other privacy standards. Such laws may charge businesses up to 4% of their annual revenues for violating their rules concerning users’ privacy. Also, FaceIO never stores your image it just stores a hashed key of the image so you’re photos are not getting anywhere you can know more about data security by clicking here . https://faceio.net/trust-center In second place comes the high accuracy for which FaceIO is known. In fact FaceIO’s engine case, accuracy is 99.8% which is insane. Being someone who has been involved in the AI field before I can tell you that achieving such a rate is extremely hard and needs an insane amount of data which is very expensive. Making a login system with FaceIO We’ve talked enough and I know you’re not here to talk but to see things work so let’s go straight for the implementation. The app will be simple, there will be 3 buttons one for registration, another one for login, and the third one to log out. The app works in a simple way you first register and then log in, at this point the logout button that was originally hidden shows up and the other buttons disappear. You can check the final version of what we’re going to build when clicking this link: https://housseinbadra.github.io/FaceIodemo.github.io/ First, you need to get your own FaceIO account if you don’t have an account it’s an easy thing to do, once you have an account login, I will be waiting for you to get ready. To signup with FACEIO click here: . https://console.faceio.net/ Once done you’ll have a Public ID associated with your application that looks something like fio9362 . We’ll need this Public ID to connect with our application So now since you’re done setting your account up it’s time to code. I told you that this app will be totally built on a mobile phone. All that we need is 3 files an index.html, an index.css, and an index.js file. So download any code editor or even go with code pen if you want to, I downloaded the SPCK editor which is a great tool. Once done create a folder and create these 3 files Your file structure should look like this: Now let’s start with the CSS, add these styles and you’ll be done with CSS body{
  width:100vw;
  height:100vh;
  box-sizing:border-box;
  font-size:10vh !important;
}
.app{
  width:100%;
  height:100vh;
  display:flex;
  justify-content:center;
  align-items:center;
} Now go to the HTML file. Add React, React Dom, and Babel CDNs to the head of your page then add bootstrap’s CSS-only CDN. Then add a link tag linked to your CSS file. Now add two div elements one with the id of root and one with the id of faceio-modal. Then add a script tag with the type=’text/babel’ to the end of your body and link it to your index.js file. And finally, add fio.js CDN to the end of your body and you’re done. Your HTML file should look like this: <!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>FaceIO demo</title>
  <script crossorigin src="https://unpkg.com/react@18.2.0/umd/react.development.js"></script>
  <script crossorigin src="https://unpkg.com/react-dom@18.2.0/umd/react-dom.development.js"></script>
  <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<link rel="stylesheet" href='./index.css'>
  
</head>

<body>
<div id='root'></div>
<div id="faceio-modal"></div> 
<script src="https://cdn.faceio.net/fio.js"></script>
<script src="index.js" type='text/babel'></script>
</body>

</html> Now for the JavaScript file, because we have used CDNs we can access react and react Dom as well as faceIO as global variables. The bad thing about using this approach is that you can’t use import statements because we set the type of the index file to text/babel otherwise the code editor will not be able to deal with JSX. But this project is quite easy so we don’t need to make a components folder but for a real-world project just go with npm create-react-app. So we will make use of object destructuring to do what we were supposed to do with imports. Then create an App component. const {createRoot , render} = ReactDOM
const {useEffect,useState}=React Now we need to keep track of users after login so we will create a state for this and to access faceio we will declare a constant io for that const [user,setuser]=React.useState('')
 const io=new faceIO('your public key') Now create 3 helper functions: Logout will set the user to an empty string, register which helps us enroll users in our application. When registering a user you can associate an id to your user, also every user enrolled will have his own id in faceIO databases. The code for the registration function is provided by fio.js API which you can find on the FaceIO website by clicking here . You can adjust the function to match your needs. https://faceio.net/integration-guide function logout(){
    setuser('')
    window.location='./'
  }
  function register(){
    io.enroll({ "locale": "auto", 
    "payload": { UID: Date.now() } }
    ).then(userInfo => {
    alert( `User Successfully Enrolled!
    Details: Unique Facial ID: ${userInfo.facialId}
    Enrollment Date: ${userInfo.timestamp}
    Gender: ${userInfo.details.gender}
    Age Approximation: ${userInfo.details.age}` );
   ;}).catch(errCode => {
   console.log(errCodr) })
  } Now it’s time for the login function. The code for this function is provided by fio.js API and you can adjust it to match your needs. When a user logs in to my app I assigned the user state to the UID of the user to keep track of him. In a bigger app, we can set cookies and much more but for this demo I tried not to complicate things .To learn more about app management click here . https://faceio.net/getting-started function login(){
    io.authenticate({ "locale": "auto" })
    .then(userData => { console.log("Success, user identified") 
                        console.log("Linked facial Id: " + userData.facialId)
                        setuser(userData.payload.UID) })
    .catch(errCode => { console.log(errCode) }) The only thing left to do is to deal with the UI. We need to show the logout button when the user is logged in and the other 2 buttons when the user is not yet logged in. And that’s what this block of code does return(
    <div className='app'>
    {!user? <div><button type="button" className="btn btn-outline-primary m-5" onClick={register} >Register</button>
                 <button type="button" onClick={login} className="btn btn-outline-info m-5">Login</button></div> : 
                 <button type="button" onClick={logout} className="btn btn-outline-primary">Logout</button>}
            </div>) And finally, render the app component to the view. We are using react18, so we will create a root variable and set its value to the div element with ID root. Then we will render the app component. const root = createRoot( document.getElementById('root')); 
root.render(<App/>); And now we’re done coding and it’s time to host this project on GitHub. Simply create a GitHub repository and set its name to . After that upload the files to GitHub and wait 5 minutes till your site is created. And we’re done. myfacerecognition.github.io Conclusion: Face recognition is a great way to authenticate your users in 2022. It still needs a little improvement and that’s what’s going to happen, AI technologies are growing at an exponential rate and that will be reflected in face recognition. Hopefully, this article was helpful in some way, and thank you if you keeping up till this point. In case you’re willing to know more about me visit: . https://houssein.in/ To know more about FACEIO visit : https://faceio.net/

Integrate Face Recognition in Your Web Application in 5 Minutes

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