The James Webb Space Telescope truly explores the unknown, displaying stunning images of previously unseen corners of the universe only possible because of the telescope’s 21-foot segmented mirror that unfurled and assembled itself in space.

NASA’s Webb Telescope Improves Simulation Software

ANSYS releases earnings for Q3 on November 1.Wall Street analysts expect ANSYS will release earnings per share of $1.26.Go here to track ANSYS

ANSYS earnings preview: what Wall Street is expecting

In this article, we will take a look at the 13 best 3D printing stocks to invest in. To see more such companies, go directly to 5 Best 3D Printing Stocks To Invest In. 3D printing is one of those futuristic trends that are guaranteed take off as companies around the world pour a fortune

13 Best 3D Printing Stocks To Invest In

ANSYS Inc ANSS is scheduled to report third-quarter 2023 results on Nov 1. The company expects non-GAAP earnings per share (EPS) in the range of $1.18-$1.31. The Zacks Consensus Estimate for EPS is pegged at $1.

Here's What to Expect From ANSYS' (ANSS) in Q3 Earnings

Upcoming AI-based additions to Ansys’ portfolio will accelerate democratization of simulation and advance next-generation innovations, company says..

Ansys Advances AI Innovations

United Microelectronics (UMC) has certified solutions to simulate the foundry's latest 3D-IC stacked technology, which will improve the power, efficiency, and performance of edge AI, graphic processing,

Ansys semiconductor simulation tools certified for UMC WoW advanced packaging

In this article, I will delve into whether artificial intelligence (AI), particularly the emergence of tools like generative AI (GenAI), will replace classical software outsourcing as we know it.

AI vs software outsourcing: An opportunity or a threat?

You've probably heard of Autodesk , the maker of computer ... Well, EDA software from Synopsys and Cadence goes beyond what Autodesk does and focuses on the microscopic world of designing electrical circuits with semiconductive material. Ansys' powerful ...

Is This Unknown Software Stock Set to Soar From Booming Semiconductor Demand?

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Well, EDA software from Synopsys and Cadence goes beyond what Autodesk does and focuses on the microscopic world of designing electrical circuits with semiconductive material. Ansys' powerful computational software is complementary to EDA software,

ANSYS INC

ansysinc

Heyo 👋 It is I, your friendly half-bot-half-human Hacker Noon Helper! You can find everything that I have to offer at , but I will also be posting some of my most helpful tips here. Hope you enjoy this series, and please tune in every week for more 😊 help.hackernoon.com Overview This story describes clever hacks for HOW TO USE various social media platforms, forums, and HackerNoon communities to bring more readers to your awesome stories. We have specifically fostered partnerships with some of these platforms, in order to get you premium exposure. Learn about each of them below and don't hesitate to get started! : this is mostly tips on what you can do to get more reads for your stories. Learn more about what Hacker Noon does (almost automatically) to help you with your story distribution . Note here Digg Digg is a social network and news aggregating site that allows users to post stories to be curated and shared on the Digg homepage and among the various Digg namespaces. Why post on Digg? We have a partnership with them and our stories get curated into other Digg spaces and on the homepage. Once you get an article on the Digg homepage, you’re guaranteed to get another 1000+ views to your HackerNoon story. Click to learn about how to with Digg HERE Get More Views DEN Den or den.social is a new social media platform built on the Dragonchain blockchain. Den incentivizes the creation, sharing, and evaluation of quality content, via their crypto token ecosystem composed of MTR, NRG, LOR, and LOT. Why post on Den? We have a partnership with them and thus have our own HackerNoon lair. When you submit don’t just post a link, you should post a of couple paragraphs about the stories and entice a discussion about it like we do on Reddit and on Slogging. This will give you the greatest chances for upvotes and more people seeing your work. How to post on Den? Navigate to den.social if you don’t already have one Signup for an account Open your article on HN Navigate to the HackerNoon Lair and join it Upvote a few posts that catch your eye and help your fellow HN writer by dropping a comment on their posts. This is not just to be nice, but . IF your account ONLY posts links and never upvotes or comments on other posts, this could a warning signal to moderator bots it is to make sure your account has normal activity Click “new post” on the right side of the page Write a title for your post, then add a couple paragraphs about your HackerNoon story. You can even talk about why you wrote it and the most important points in the story. Be sure to include the link to your story near the top of the post. Feel free to get creative and add images, memes, Gifs, etc. Make sure you end off with a CTA/closing line that encourages people to reply to your post with their own comments or questions about what you’ve discussed. Reddit This is a platform that hopefully needs no introduction. There is a subreddit to post anything and everything. However, many of these are strongly moderated and some places don’t even allow you to post articles you’ve written. Luckily, we have a HackerNoon subreddit which we moderate and your articles will always be accepted there. Why post on Reddit? So the reason for posting on Reddit is not just to get views. We can also use their platform and strong domain authority as a tool to rank for certain keywords. Posts on Reddit often hit the front page of Google and those posts generate backlinks for the stories linked within them. BUT the catch is that what ranks on Google and Reddit is normally the posts with the most comments and text in the post itself. Therefore, when you post on HackerNoon’s subreddit, don’t just post a link. Create a post with a couple paragraphs or more of intro and then introduce your article. Create a post that will start a conversation and encourage comments. The more comments you get, the higher chance that the post will rank on Google. How to post on Reddit Navigate to reddit.com if you don’t already have one Signup for an account Navigate to the and join it HackerNoon subreddit Upvote a few posts that catch your eye and help your fellow HN writer by dropping a comment on their posts. This is not just to be nice, but it is to make sure your account has normal activity. IF your account ONLY posts links and never upvotes or comments on other posts, this could a warning signal to Reddit moderator bots Click “create post” on the right side of the page Write a title for your post, then add a couple paragraphs about your HackerNoon story. You can even talk about why you wrote it and the most important points in the story. Feel free to get creative and add images, memes, Gifs, etc. Be sure to include the link to your story near the top of the post. Make sure you end off with a CTA/closing line that encourages people to reply to your post with their own comments or questions about what you’ve discussed. community.hackernoon.com What many people don’t know is that we have our own community forums on HackerNoon. Why post on HackerNoon Community Forums? There are thousands of writers registered for this community and when new posts are made, writers with email notifications turned on will be notified. A single post in Community can get over a thousand views: Don’t waste this chance to get more eyes on your work. It’s also useful to get the feedback from other HN writers if you want to improve your craft. How to post on HackerNoon Community Forums Navigate to . Community Log in with your regular HN account email and password If you published a guide, opinion article, or feature (anything but news), navigate to the forum. If you published a news article, navigate to the forum. Why I Published This Tech News Roundup Help your fellow HN writers out by clicking on a couple threads, hitting that like button, and dropping a comment. Click on +New Thread in the top right Open your story on HN Paste your story URL into the top and wait for the title to auto-fill Remove | Hacker Noon from the title to clean it up Below the URL in the body of the post, add 2-4 paragraphs introducing what the article is about (if you wrote a news piece) or why you wrote the article and who you wrote if for (if you wrote a guide or opinion piece). Make these paragraphs enticing so that it encourages comments or questions from the community. Click +Start Thread in the bottom left and you’re done! Facebook HackerNoon Contributor Network Some of our writers are Facebook users and we’d like to be available to our writers wherever they like to hangout. Our FB contributor group is private but it is 1.5k members strong and growing. Why post on HackerNoon Contributor Network? A user’s FB feed is populated by posts from their friends but also by posts in the groups they’ve joined. If you joined 100 Nintendo groups, it’s likely that your feed is filled with Nintendo content. Thus, posting your stories in our FB Contributor Network could help get more eyes on the stories you worked so hard to write. And...since this is moderated by HN, you know that we won’t reject your posts about your HN stories. How to post on HackerNoon Contributor Network Navigate to the . HackerNoon Contributor Network Request to join the group. Once you’ve joined, under “Discussion” click on “what’s on your mind?” and start your post Copy-paste the URL of your HackerNoon story and hit enter. Add a couple paragraphs about your story and use some #hashtags Hit “post” and you’re done! Twitter I'm sure you already know what Twitter is, but what hacks can you try to get the most out of your Tweets, and bring valuable readers to your stories? Below are some techniques we recommend: Post on Twitter (Tag @hackernoon) Track down every tweet that mentions your story, retweet and like it Mention a related thought-leader in the article body and beg them to re-tweet it. If you have to @ hackernoon to begin with, do the .@hackernoon convention so we see it not just as a reply. LinkedIn LinkedIn is a powerful networking platform and a great place to post your content. Every article you share on LinkedIn is another piece you can add to your portfolio. Every time people see your posts on Linked you open yourself up for job opportunities, guest speaking opportunities, and general clout. Here are some LinkedIn strategies we recommend: Post on Linkedin (Tag @hackernoon) Track every share on LinkedIn, like it, and thank the sharer in the comments. Mention a related thought-leader in the article body and beg them to share it. PSA: Important Tips from Utsav: You’ve finished penning down your latest article and submitted it to Hacker Noon for publication. Voila, it got accepted and published as well. Now you’re checking out your story’s stats but they aren’t growing as fast as you’d hoped. You get that sinking feeling that your piece is not going to go viral. You tell yourself that the other guys who do go viral have a couple of aces up their sleeve that they never reveal in their videos. So, how about using the power of the hive to get a few extra thousand reads on your article. Below are the techniques that I use. In order to get more readers, I recommend you to share it with your friends! Post on Twitter (Tag ) @hackernoon Post on Facebook (Tag ) @hackernoon Post on Linkedin (Tag ) @hackernoon Plus: Track down every tweet that mentions my story and I retweet and like it. Track every share on LinkedIn and Facebook, like it and thank the sharer in the comments. Mention a related thought-leader in the article body and beg them to share/re-tweet it. Draw own graphics (via Lucidchart) where possible instead of sharing a stock picture. Try to get in an image for every 300 words. Original answer by @hackerhodl . here Something we didn't cover?
Search the site by clicking 🔍 at the top right of any page. Or email us at ✌️ yes-reply@hackernoon.com

Hacking Hacker Noon: How to Get More Reads for Your Stories

Apresentarei aqui algumas abordagens que ajudam( ou podem ajudar) no desempenho e qualidade de seu Front End. Estas ideias foram fundamentadas em minha experiência profissional e no curso de Arquitetura de Software. Serei mais sucinto possível. Qualquer dúvida entrem contato comigo. Antes de entrar nas dicas É importante antes de iniciar ter em mente o funcionamento da Web e da comunicação do HTTP. Pesquisem rapidamente sobre Three Way Handshake, renderização de conteúdo nos browser web. Responsabilidade do HTML, CSS e JS. Vamos as Dicas 1 — Mantenha seu HTML, CSS e JS em arquivos separados; 1.1 — Facilitamos o processo de manutenção de nosso Front End; 1.2 — Conseguimos manter o princípio da responsabilidade única; 1.3 — Facilidade em adotar ferramentar de transpilação de CSS (SASS e LESS) e Bundles (Webpack). Outros formas de utilizar os recurso no HTML: Inline e Embedded. 2 — CSS no início e JS no fim do HTML. 2.1 — Coloque o CSS no início para que a página não carregar inicialmente sem estilo e coloque o JS no final para que a página não se torne lenta em sua primeira resposta; O fonte fica assim: Browser Diet Estilo no início e JS no fim < > html < > head < = > meta charset "UTF-8" < > title </ > title  < = = = > link rel "stylesheet" href "/css/siteCSS.css" media "all" </ > head < > body < > p </ > p   < = > script src "/js/siteJS.js" </ > script </ > body </ > html Indo mais além: uma outra abordagem é utilizar a requisição assíncrona para o JS. Isso faz com que a página não espera o retorno do arquivo para continuar a renderização. (<script async src=”siteJS.js”></script>) 3 — Sempre minifique para produção Ele faz com que um texto legível para nós se torne uma versão menos verbosa e com isso realizar a diminuição dos arquivos( remoção de comentários, redução de nomes de variáveis, remoção de quebra de linhas, etc). 3.1 — Transporte de arquivos menores; 3.2 — Maior velocidade no carregamento pelo Browser; 3.3 — Menor carga de dados na rede e no servidor de aplicação; Dica: pesquise por ferramentas de minificação. 4 —Sempre bundling para produção O processo se resume em criar um (ou alguns) arquivos a partir de vários outros. 4.1 — Redução da quantidade de requisições HTTP ao servidor de aplicação; 4.2 — Melhoria desempenho da página web; Ferramenta: (querido) Webpack. 5 —Imagem Sprites “Cria uma imagem com todas dentro”.Observe o quadro abaixo, ele será a melhor explicação dessa técnica: 5.1 — Redução de requisições HTTP; 5.2 — Redução no tempo de carregamento do site; Ferramenta: vale testar o processo com estas ferramentas https://css.spritegen.com/ , https://www.toptal.com/developers/css/sprite-generator/ . 6 — Remoção de metadados de imagens As imagens possuem metadados que não influenciam na funcionalidade delas para os websites( modelo da câmera, data, local). 6.1 — Diminuição do tráfego na rede; 6.2 — Carregamento mais rápido das imagens; Exemplo de ferramentas: https://www.verexif.com/en/ , https://www.exifremove.com/ . E por fim Existem muitos outras técnicas para melhorar suas páginas web, porém comece com estas pois elas resultarão em grande mudanças na organização e no desempenho do seu site. Não existe bala de prata e além disso sempre vale analisar se para o projeto em questão o aumento da complexidade justifica os ganhos. Referências: http://lesscss.org/ https://sass-lang.com/ https://browserdiet.com/ https://webpack.js.org/

Dicas para ter um “bom” Front End

The four categories of crypto tokens or “digital assets” are open source cryptocurrencies, ICO coins, Reg D compliant initial offerings, and tradable securities. If you are considering issuing your own assets, or handling existing assets, you should understand where they fit in this list. Open source cryptocurrencies In the beginning there was bitcoin, an open source cryptocurrency. An open source cryptocurrency is used to reward participants that are part of an open source community. They organize themselves by agreeing to run the same code. They share resources, and they distribute rewards to resource providers in the form of crypto coins or tokens. Bitcoin pays for “mining”, which is compute time used to make the blockchain reliable and difficult to modify. Open source cryptocurrencies have created massive new value, as measured by market capitalization. They gain value because monetizing a large open source community is an important and NEW business model. Bitcoin is a first generation implementation of this idea. It seems likely that some next-generation platforms will emerge with an equivalent level of value. It is important to remember that new bitcoins were never sold. Every bitcoin was created as a mining reward. Because of this, bitcoin and its relatives are legally treated as money, or a commodity, rather than an investment security. They are actively traded in many jurisdictions outside of security laws. These coins are resistant to regulation because they actually are decentralized. ICO coins ICO coins ARE usually sold in order to raise money for investment in a project. The investments range from building pure open source software, to investing in business operations that have nothing to do with open source software. There are some very good ICOs. The Ethereum ICO was (after a rocky start) fabulously successful. Good ICO issuers tend to get close to the original idea of sharing resources in an open source community. They tend to use coins for interactions between computers, paying for API calls and compute time, which is useful because computers do not have bank accounts. Some centralized companies have made honorable use of tokens for discounts and staking. However, many ICOs are bad investment offers. They are bad startup stock investments, with no rights for investors, packaged for easy trading. One popular tactic for selling coins with few investor rights is to say that customers will be forced to acquire a coin in order to pay for a service. This subtracts value, because customers don’t like to acquire a weird coin in order to buy a service. To get their business, issuers have to give up on the coin, or offer a significant discount. These discounts are often in the range of 50%, which gives a measure of how much value is being subtracted by the coin. This type of “you must pay with my coin” deal is not likely to survive. Some countries have embraced ICOs as a way to bring new capital into startups. They are banned in China, which already has lots of startup funding channels and is concerned about restricting the movement of capital. ICOs tend to be classified as illegal security offerings in the US and a number of other jurisdictions, where regulators consider them to be unfair workarounds of existing securities laws. Coins that are not sold as securities will often be classed as product presales and subject to sales tax, VAT, and income tax. Regulation of the offerings is effective because they have a central issuer. My prediction is that the age of the ICO is over. There are not enough truly decentralized and open source business models to support a lot of good ICOs. Investing in other types of business models will require issuing securities. Reg D compliant initial offerings The first attempt to sell tokenized investments in compliance with securities laws was to require that the initial buyers be qualified with KYC, AML, and accreditation checks. This makes the initial sale compliant with securities laws in the US. There are similar rules for selling to “sophisticated investors” in other jurisdictions, such as the UK, Japan, and Singapore. However, this strategy is very limited. After you sell a coin as a security, it needs to be handled as a security before it can go to “secondary market” trading and other uses. So, the issuers that have sold coins in this format are stuck with trying to do some sort of conversion from the security to unregulated coins, or to fully compliant, tradable securities, as described below. Tradable securities A tradable security represents a claim on an issuer, such as a stock or a debt or a royalty (revenue share). This type of asset is regulated in almost every jurisdiction. The most universal requirement is that owners have to go through AML checks — Anti Money Laundering. Governments want to know that security owners are getting their money from sources that are not criminal or sanctioned, and that they pay their taxes. This check is often described as KYC/AML (where the “know your customer” phase is the onramp to AML). Cryptocurrencies can be owned and traded by computers. Securities are different. Security owners must be qualified in some way as people or entities. Every security, including a public security, needs some sort of check on investor qualifications. In the US and many other jurisdictions, securities can be classed as “private”, because they do not release enough information to qualify as a public security. These securities have additional rules and qualifications. In the US, they can usually only be acquired by “accredited” investors with at least $1M in assets, and they have transfer restrictions. Other jurisdictions have similar rules that apply to “sophisticated” or “professional” investors. These qualifications apply beyond the initial sale. The issuer is obligated to qualify future owners of a security, when they acquire the security in an exchange trade or OTC / wallet to wallet transaction. To enforce the qualification requirement, blockchain securities need to be equipped with some sort of programmed compliance. There are two ways to do this. One way, used in Ethereum, is to program the compliance directly into the scripts that represent the security. These scripts check some on-chain data — whitelists or attestations — to decide whether to approve a transfer. The other way, used in Stellar, is to set the chain to check with an off-chain authority. This application needs to check its off chain database and sign off on the proposed transaction. Both methods rely on keeping a list of qualified investors, from the issuer, or from some syndicate of agents and platforms exchanges that the issuer trusts. Equity, or stock, is the most flexible type of security, because equity owners can share in the profits of any line of business. But, equity issuers have extra qualification requirements. Equity issuers are obligated to keep a registry — a list of their stockholders. This is both for regulatory reasons, so that regulators can track down owners, and for investor service reasons, so that owners can vote and receive distributions. There are two ways to maintain this registry. The issuer can maintain it, by pulling information from the syndicate members that qualified the investors. Or, a centralized transfer agent can maintain it, by forcing all of the investors to come to one exchange or portal. The transfer agent approach is simpler, but the issuer registry is more useful in a global distribution network. Securities are already widely traded in a sophisticated distribution and exchange system. So, why do we need blockchain securities? We need them because the older system evolves slowly and painfully. It has a lot of complicated parts that need to be integrated into any change, it is walled off by licenses, and it is siloed by country. There are a lot of features that securities investors and issuers want that are taking decades to insert into the older system. This includes features such as global distribution, immediate settlement and delivery, and automated compliance and reporting. The blockchain-based system can provide these features because it evolves much faster. It is simpler, and innovators can access it more easily. It’s a classic disruptive technology. It’s currently too simple and crude to replace the older system. But, the open blockchain system is evolving more quickly, and it will start to grab pieces of the market that need new capabilities. Currently, the blockchain version of tradable securities is a tiny market. There are few buyers. A generous estimate of issuance volume would be $2B/year, which is about 0.1% of total securities issuance. Where will blockchain securities have an impact? A lot of work is focused on improving the private offering market for startups and real estate, which currently has very little automation, distribution, and transparency. We’ll see a bigger impact when completely new applications emerge, the way that cryptocurrency emerged. I’m focusing on a new structure for handling tokenized assets that I call SPV + ETF. As features improve, we will find more applications. body[data-twttr-rendered="true"] {background-color: transparent;}.twitter-tweet {margin: auto !important;} Where tokenized securities fit in the list of four types of cryptoassets, and how they are different. https://t.co/w7m09fCCbI — @andysingleton function notifyResize(height) {height = height ? height : document.documentElement.offsetHeight; var resized = false; if (window.donkey && donkey.resize) {donkey.resize(height); resized = true;}if (parent && parent._resizeIframe) {var obj = {iframe: window.frameElement, height: height}; parent._resizeIframe(obj); resized = true;}if (window.location && window.location.hash === "#amp=1" && window.parent && window.parent.postMessage) {window.parent.postMessage({sentinel: "amp", type: "embed-size", height: height}, "*");}if (window.webkit && window.webkit.messageHandlers && window.webkit.messageHandlers.resize) {window.webkit.messageHandlers.resize.postMessage(height); resized = true;}return resized;}twttr.events.bind('rendered', function (event) {notifyResize();}); twttr.events.bind('resize', function (event) {notifyResize();});if (parent && parent._resizeIframe) {var maxWidth = parseInt(window.frameElement.getAttribute("width")); if ( 500 < maxWidth) {window.frameElement.setAttribute("width", "500");}}

Four types of digital assets

credit: https://medium.com/@joelrodrigues/how-to-access-mongodb-from-node-js-e37c587f226a What is MongoDB? is a document holding data in JSON format. Since it’s not based on joining, it’s easy to distribute data across servers by it’s sharding feature. MongoDB database Developers can develop application which can be agnostic about deployments. MongoDB supports scaling out as opposed to RDBMS which supports scaling up. Mongo shell is written using C++ V8 for administering the MongoDB. credit: http://coenraets.org/blog/2012/10/creating-a-rest-api-using-node-js-express-and-mongodb/ What is node.js _node.js_ is basically a _C++_ program that you control using _V8 javascript_ . So any applications you write using _node.js_ will be written in _javascript_ and it will control this _C++_ application ( _node.js_ ) and you’ll be able to say something like they made request for this resource and your application actually in _javascript_ will say: okey, they made a request for this resource, I don’t have to respond to that. Now respond accordingly. connects to using drivers. Installing bit release shall be avoided because it limits the addressable size of data using the default storage engine. Node.js MongoDB 32 What is JSON? To a layman, is merely a string, anyways. objects are composed of pairs. Keys must be strings, Keys and values must be separated by semi-colons. Fields within a object are separated by commas as delimiters. objects are opened and closed using curly braces: [JSON](http://json.org/) JSON key-value JSON JSON {"string" : "sting value goes here","date" : "2015-10-27T22:35:21.908Z","number" : 123,"object" : {"key1" : "value1","key2" : "value2"},"boolean" : true,"array" : ["test",{ "key1" : "a", "key2" : "b" },[ "abc", "xyz" ]]} The above example shows that supports a number of data-types. The field shows an example of nested values. As we can see and - data models commonly make use of nesting and even what we might call . The flexibility provides makes it simple to implement different data access patterns by creating objects that contain all the data required to render a webpage full of content or say to provide another type of data view for users with very few requests. JSON object object array MongoDB deep nesting JSON What is BSON? stores data as (binary ). Here is the comparison: MongoDB [BSON](http://bsonspec.org/) JSON // JSON{"hello": "world"} // BSON"\x16\x00\x00\x00\x02hello\x00 \x06\ x00\ x00\ x00world\ x00\ x00 " drivers send and recieve data in format and when the data is written to , it’s stored in . MongoDB BSON MongoDB BSON On the application side, the drivers map to most appropriate native data types. It’s BSON lightweight traversable, to support a variety of operations necessary for writing, reading and indexing documents MongoDB efficient, meaning encoding/decoding data to/from BSON as the drivers need to do can be performed very quickly. doesn’t distinguishes between s and s. Doesn’t supports s. extends the JSON value types to include s, s, s and binary data to support images and a number of other types of data. JSON integer float date BSON integer double date Installation for Windows To access the and directly from shell, Change the path for MongoDB: mongo mongod Go to System Properties Go to Advanced settings Click Environment variables Go to System variables Go to (this is where Windows looks for executables) Path Add the ’s startup location (eg: ) MongoDB C:\Program Files\MongoDB\Server\3.2\bin Sometimes, you might need to refresh the system to see these shortcuts working However before using from terminal, create the directory for to data by following the below commands: mongodb C:\data\db MongoDB store md \data\db Notice, the before - this makes sure that the directory is created in root directory (in this case ) only. \ data\db C:\ Now, if you type and hit Enter, it starts running. If you read the log printed on the terminal, it says that is listening on and that i.e. the default path - which we created lately. mongod MongoDB port=27017 dbpath=C:\data\db Now, once is running, we can start which makes a connection to port . mongod mongo 27017 Doing some CRUD For the sake of testing this installation, we’ll do a simple document using: insert and (or in relational terms) using the below command: db.names.insert({name:'testing'}) find select db.names.find() Where is an example of document. Also, to make the result of much readable, we can chain command. {name:'testing'} .find() .pretty() We can run as a as well. MongoDB service In , documents are stored in colletions which are organized into databases. To see databases present in run MongoDB MongoDB show dbs To insert a document into a collection, we first need to know how to specify that collection in the command. A collection and database that contains it form a . When doing operations, we reference the global variable . This variable holds the reference to the database we’re currently using. To switch to a database names type . namespace CRUD db test MySQL like command use test The insert operation returns a document as well, where set to true indicates that the record (or better say, document) was inserted successfully. All documents must have an _id field. Each document in a collection must have a unique document id. At the heart of the query language for is a query by example strategy. We can pass a blank object , key value pair . The result of command is not a mere array of documents, it’s instead a . We can see this: acknowledged underscore MongoDB {} {name: "Uber"} find() cursor object var c = db.names.find();c.hasNext() //returns true, meaning there is a document yet to be visited by this cursorc.next() //grabs that document Building using node To build applications using , we first need to . node.js install it Let’s create a simple server: http // Source: howtonode.org/hello-node // Load the http module to create an http server.var http = require('http'); // Configure our HTTP server to respond with Hello World to all requests.var server = http.createServer(function (request, response) {response.writeHead(200, {"Content-Type": "text/plain"});response.end("Hello World\n");}); // Listen on port 8000, IP defaults to 127.0.0.1server.listen(8000); // Put a friendly message on the terminalconsole.log("Server running at "); http://127.0.0.1:8000/ Store the above code in a file, let’s say .js app.js And how do we start it? In the terminal, go to the location of the file and type . To verify, if it’s running or not, go to . Notice port , which ‘ve pecified in the above code. node app.js http://localhost:8000 8000 we What is NPM var express = require('express'), cons = require('consolidate'), mongodb = require('mongodb'); is how we add an external library in a application. If we run this code through terminal, we’ll get the below error: require() node.js node To get this missing thing as a package, we can use command line . In real projects, there will be a bunch of package dependencies. Installing them all one-by-one will be a big pain. To resolve this comes file. This file contains meta data about the dependencies: express node node npm install express package.json {"name": "project name goes here","version": "0.1.2","description": "npm introduction","main": "app.js","dependencies": {"consolidate": "~0.13.1","express": "~4.13.3","mongodb": "~2.1.3"},"author": "ABC","license": "MIT"} With this file in , simply running will get all the packages for us inside directory. There’s also a way to install packages globally. place npm install project’s local node_modules What is Node.js Driver The driver communicates with the server using it’s wire protocol. It handles things like opening sockets, detecting errors and managing connections to replica sets. To include the driver in an application, use code and install using . As we can see, it’s a node package. Try to connect to using this package: MongoDB var mongodb = require('mongodb'); npm install mongodb just MongoDB var MongoClient = require('mongodb').MongoClient,assert = require('assert'); var url = 'mongodb://localhost:27017/startup'; MongoClient.connect(url, function(err, db) { assert.equal(null, err);console.log("Successfully connected to server"); // Find some documents in our collectiondb.collection('startup').find({}).toArray(function(err, docs) { // Print the documents returneddocs.forEach(function(doc) {console.log(doc.name);}); // Close the DBdb.close();}); // Declare successconsole.log("Last call");}); In order to use the , it’s important to have a solid understanding of the nature of in , including database requests. MongoDB Node.js driver asynchronous IO javascript The _mongo_ shell is synchronous meaning that when you issue a find command, it blocks waiting for command to return before continuing. This is not the case with _Node.js_ driver. Whether you’re doing a query, as we are here in the call defined or just setting up a connection to the database. As is common in _Javascript_ applications, the _Node.js_ driver we’re going to use is designed so that it’s methods function asynchronously. What this means is that instead of waiting on a return value from any methods we call, we instead pass in a callback function. The second parameter in the above call is a callback function. And is going to handle the result of this connection operation. Because of nature of , the following message gets printed before any database values: MongoClient.connect anysnchronous node.js _Last call_ What is Express is a module that handles routing, request parameters and other details of requests. Express node.js HTTP Here is a basic example of setting up a basic server: Express var express = require('express'),app = express(); app.get('/', function(req, res){res.send('Hello World');}); app.use(function(req, res){res.sendStatus(404);}); var server = app.listen(3000, function() {var port = server.address().port;console.log('Express server listening on port %s', port);}); Implementing HTML Templates The following example shows how to a template: implement HTML //file: app.jsvar express = require('express'), //set up the Express serverapp = express(), //use it to create an Express appengines = require('consolidate'); //use the wrapper library app.engine('html', engines.nunjucks); //register nunjucks template engine app.set('view engine', 'html'); //as being associated with the html extension, set the view engine app setting app.set('views', __dirname + '/views'); //specify template location app.get('/', function(req, res) {res.render('hello', { name : 'Templates' });}); app.use(function(req, res){res.sendStatus(404);}); var server = app.listen(3000, function() {var port = server.address().port;console.log('Express server listening on port %s', port);}); And the html //file: views/hello.html <h1>Hello, {{name}}!</h1> In the above code, is basically a set of wrappers for a number of template engines for . requires certain libraries to have a certain interface and handles that for us. is a variable which allows us to access to the directory in which the application file (in our case, ) resides. Since, we’ve passed - we’ll see the below output: consolidate Express Express consolidate __dirname node.js app.js name : 'Templates' Here’s a more advanced version which connects to the database as well: //file: app.js var express = require('express'),app = express(),engines = require('consolidate'),MongoClient = require('mongodb').MongoClient,assert = require('assert'); app.engine('html', engines.nunjucks);app.set('view engine', 'html');app.set('views', __dirname + '/views'); MongoClient.connect('mongodb://localhost:27017/startup', function(err, db) { assert.equal(null, err);console.log("Successfully connected to MongoDB."); app.get('/', function(req, res){ db.collection('startup').find({}).toArray(function(err, docs) {res.render('startup', { 'name': docs } );}); }); app.use(function(req, res){res.sendStatus(404);}); var server = app.listen(3000, function() {  
    var port = server.address().port;  
    console.log('Express server listening on port %s.', port);  
}); }); and the html //file: views/startup.html <h1>Hello, {{name}}!</h1> Handling GET requests using Express var express = require('express'),app = express(),engines = require('consolidate'); app.engine('html', engines.nunjucks);app.set('view engine', 'html');app.set('views', __dirname + '/views'); // Handler for internal server errorsfunction errorHandler(err, req, res, next) {console.error(err.message);console.error(err.stack);res.status(500).render('error_template', { error: err });} app.get('/:name', function(req, res, next) {var name = req.params.name;var getvar1 = req.query.getvar1;var getvar2 = req.query.getvar2;res.render('hello', { name : name, getvar1 : getvar1, getvar2 : getvar2 });}); app.use(errorHandler); var server = app.listen(3000, function() {var port = server.address().port;console.log('Express server listening on port %s.', port);}); The template is: hello <h1>Hello, {{name}}, here are your GET variables:</h1><ul><li>{{getvar1}}</li><li>{{getvar2}}</li></ul> and the template goes here: error <h1>Error: {{error}}</h1> In the above app, we’re just registering only one route i.e. . The colon says to take this part of the URL and store in a variable called . /:name name Will share further notes next week. Photos Originally published at xameeramir.github.io .

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In Swift, using for asynchronous code may seem like pure hell because, under the hood, are considered complete if the compilation of their synchronous code is completed. OperationQueue Operations In other words, compiling the example described below will output a broken execution order since, by the time the asynchronous code is executed, the itself will have already been completed. Operation let operationQueue = OperationQueue()
operationQueue.maxConcurrentOperationCount = 1

operationQueue.addOperation {
    DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
        print("First async operation complete")
    }
    print("First sync operation complete")
}

operationQueue.addOperation {
    DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
        print("Second async operation complete")
    }
    print("Second sync operation complete")
} This code will print: First sync operation complete
Second sync operation complete
First async operation complete
Second async operation complete However, there is a way to circumvent these restrictions. To understand how to solve the problem, you need to understand how works under the hood. Operation The itself has four flags by which you can track the life cycle of the operation: Operation — indicates whether the can be performed at this time. isReady Operation —indicates whether an is currently in progress. isExecuting Operation —indicates whether the is currently completed. isFinished Operation —indicates whether the was canceled. isCancelled Operation In theory, the enters the state before the itself is executed asynchronously, so we need to develop a technique by which we will be able to manipulate the life cycle of the . Operation isFinished Operation Operation This possibility can be solved by subclassing the and also by redefining the / methods, as well as all the flags on which the operation's life cycle is built. Operation start cancel Here’s the code: public class AsyncOperation: Operation {
    // MARK: Open

    override open var isAsynchronous: Bool {
        true
    }

    override open var isReady: Bool {
        super.isReady && self.state == .ready
    }

    override open var isExecuting: Bool {
        self.state == .executing
    }

    override open var isFinished: Bool {
        self.state == .finished
    }

    override open func start() {
        if isCancelled {
            state = .finished
            return
        }
        main()
        state = .executing
    }

    override open func cancel() {
        super.cancel()
        state = .finished
    }

    // MARK: Public

    public enum State: String {
        case ready
        case executing
        case finished

        // MARK: Fileprivate

        fileprivate var keyPath: String {
            "is" + rawValue.capitalized
        }
    }

    public var state = State.ready {
        willSet {
            willChangeValue(forKey: newValue.keyPath)
            willChangeValue(forKey: state.keyPath)
        }
        didSet {
            didChangeValue(forKey: oldValue.keyPath)
            didChangeValue(forKey: state.keyPath)
        }
    }
} The subclass we received from the is basic and allows us to forcefully complete it manually. Operation To work with completion blocks, you should create another subclass. However, this will not be a subclass of the , but of . Operation AsyncOperation public typealias VoidClosure = () -> Void
public typealias Closure<T> = (T) -> Void

public class CompletionOperation: AsyncOperation {
    // MARK: Lifecycle

    public init(completeBlock: Closure<VoidClosure?>?) {
        self.completeBlock = completeBlock
    }

    // MARK: Public

    override public func main() {
        DispatchQueue.main.async { [weak self] in
            self?.completeBlock? {
                DispatchQueue.main.async {
                    self?.state = .finished
                }
            }
        }
    }

    // MARK: Private

    private let completeBlock: Closure<VoidClosure?>?
} This subclass will allow us to pass a closure to the , after which the will be completed. Operation Operation Let’s try this type of operation in practice: let operationQueue = OperationQueue()
operationQueue.maxConcurrentOperationCount = 1

operationQueue.addOperation(
    CompletionOperation { completion in
        DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
            print("First async operation complete")
            completion?()
        }
        print("First sync operation complete")
    }
)

operationQueue.addOperation(
    CompletionOperation { completion in
        DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
            print("Second async operation complete")
            completion?()
        }
        print("Second sync operation complete")
    }
) As a result, we were able to achieve synchronous execution of : Operations First sync operation complete
First async operation complete
Second sync operation complete
Second async operation complete Don’t hesitate to contact me on if you have any questions. Also, you can always . Twitter buy me a coffee Also published here

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On the couch. On the floor. On the desk. On the bed. In the office. How do you like your work? Roughly, the average time difference between any two continents is 12 hours. You may be starting a new week at the very moment your coworkers are still partying or snoring. Hiring hack at the end. When stakes are involved, humans are a very anxious bunch. We’re more likely to have conflict than discipline when we need to operate as a unit. As an employer/manager, everyone on your team has their personal stakes in working with you. You must never ignore this. Organizational psychology shows us that without keeping our staff sustainably motivated, our businesses will only suffer. And suffer. Business comes with its own stakes… To build a strong team, you prepare against these threats: Other companies will try to poach your carefully-selected, high-performing teammates, (workforce losses) The stream of work is never-ending, and results are essential (workforce wastage) Your resources are finite (limited resources) …and remote work raises those business stakes 🛰 You inherit the crucial responsibility of keeping comms + systems butter-smooth and air-tight—without the luxury of access to everyone’s immediate attention at their desk or office. Today, having distributed teams spanning continents, it is clear that the value the individual brings matters the most at work. We’re just separated by, well, physical space. 👨🏽‍🚀 Your access to them is limited to a digital notification. Is that good or bad? is to provide practical solutions you can implement in your remote employment for smoother asynchronous work. The goal of this piece Highly-Motivated, Tight-Knit & Async 📡 Understand this, . Sure, a hybrid model will help you eat your cake and have it, but business conditions vary with industry, company size, and the characteristics of your workforce. remote work will never be the same as in-office work It’s not to say that remote work is a tougher model of employment, but it just means that certain biological factors that help people integrate into your company’s culture won’t kick in without a catalyst. In a sense, your employees are… electronic. After collecting feedback from my networks and social media, here’s how electronic employees feel about working async: Ick ” No real-time collaboration/communication when I need it.” Joy “ The freedom to design my life.” Nuff said. But then there’s stuff they’re not saying. We’ll get to that. First, let’s recount the long-term benefits of async work: You can serve & support customers anywhere on the planet in real time (Hey there, Big Brother 👁) Presence: Gain access to the global talent market to employ the best people to take your business to the next level. Quality: Global champions the freedoms of working async, from diverse teams to the personal space required for deep work and improved well-being. Attractiveness: relish With helpful systems in place, individual contributions & performance are easier to recognize & reward. Performance: Companies like , GitLab, and Automattic are fully remote and async. Many other companies, such as and , work in a hybrid style. GitHub Google Microsoft Depending on your business, async might be exactly what you need. But here’s the fine print… …the freedom of async is a double-edged sword 🪂 We love remote work, but we’re still working through the trade-offs. It’s not as easy to build relationships and team bonds over the internet. We lose the water cooler/early bird conversations that allow us to really connect. For people without friends or family nearby, their job their social life. Screens just won’t cut it, so encourage your employees (in that position) to co-work however possible. I’ve seen it work wonders in dealing with isolation. is Our employment models must be sustainable if we want to build businesses that outlast us. What will be like in 100, no, 1000 years? remote work Harnessing Human Nature: Electronic Employees 🔌 Working remotely allows us to slack off when we need it. After all, no one’s watching. This is not a problem, if; we can pick up after ourselves. We all make a mess sometimes, but neglect will destroy any amount of hard work. We can’t have that. , & are threats to your organizational success. Workforce losses workforce wastage limited resources Your counterattack? ⚔️ Personal responsibility + Clear vision + Enabling culture = Highest Performance Actions to take here are twofold, from your end, and theirs. If you employ middle management, they’ll maintain both. Your end: Approach (Clear Vision + Enabling Culture) ⚖ If their assignments feel like a chore, your team will put out the bare minimum. Before you ask your employees to lift a finger, show them why you think working on X (and not Y) will bring results, and allow them to disprove it with data from your customers/community. It’s a slow death to run your team on hopes and dreams. They will certainly burn out. They’re asking: Why are we doing this? How do we measure success? Don’t sugarcoat the data. If it’s not looking good, it’s not looking good. When the stakes are clear, your team will go all in. It’s a pain when their hard work does not bring the results they expect, from leadership or from the customers. It shows a lack of depth, and they too, will withdraw. This information you provide will be crucial for the next step. Their end: Feedback (Personal Responsibility)👂🏾 To keep everyone accountable, promote a heavy feedback culture before decisions are made at level. any any According to , immediately after listening to someone talk, the average person remembers only about half of what they’ve heard—no matter how carefully they thought they were listening. Harvard Business Review’s research That means you must the time spent in meetings, and your focus on providing high-quality instructions that can be referred to consistently and continuously. reduce increase Text is the simplest medium. Go higher with visuals, video & audio. Let’s See The Gantt Chart Before opening any apps or even checking new messages on Slack, insist that each member of your team go through the big picture; daily. It should be a visual representation of their responsibilities, their relevance, and the metrics for success. Each is essential. Without everyone able to see the grand scheme, confusion, and miscommunication are all you’ll get, with hardly anything done. For big teams, use a Gantt chart. Smaller teams (2-5 employees) may be able to get by with a simpler task list as long as it allows for subtasks & assigning. 💡 Show Sarah (hi!) what, why, when and where her work matters in the team project. It won’t take you 5 minutes to add in for each person, and it will give your employees a singularity of purpose. If Sarah knows that her deliverables will be the foundation for Segun’s work to kick off, it gives her a sense of duty. If Segun knows he puts the cherry on top, he’s encouraged to follow through each process and understand everyone’s contributions better. We all need to see the plan. Make it available, or you’ll get stuck doing back-and-forth texting. Tools: Microsoft To-Do, Notion https://youtu.be/BrsEED0-KGg?si=HYCU89JfX382iIAP&embedable=true Personal Responsibility Is Fuel Insist that your employees send you a daily 30-60 second rundown of their daily work in line with the Gantt chart (or whatever you use to plan), and how anyone can find it. It must be in line with the company’s daily, weekly, monthly, or yearly goals and it’ll save your team significant waiting time looking for access to solutions, files, folders, and reports. Sarah: “My goals for today were X & Y. I’ve started on X, but I had challenges with Z and resolved them with Segun. We decided on ABC as the best route. I’ll finish X first thing tomorrow, on schedule.” ”Y is done and available in the #Alphabet channel on Slack.” Daily progress makes weekly strides, and so on. It will keep everyone, including management, setting attainable goals and managing the workforce as a limited resource. More importantly, it’ll help to answer questions another employee may have about another’s work. Since the main issue with collaborating asynchronously is real-time access, providing a video or audio recording of what was done and where to find it will go a long way. Tool: Loom https://youtu.be/N1FPPYhZQoE?si=Ew_Fn0LciK0Ie36x&embedable=true PS: If you find that your teammates are lacking in personal responsibility, you may have hired poorly, or they have one foot out the door. Hiring Hack: Roughly, the average time difference between any two continents is 12 hours. You may be starting a new week at the very moment your coworkers are still partying or snoring. In Asia alone, there are 11 time zones. If you hire talent in time zones (4-8 hours) ahead of yours, you make it more convenient for them. They can use their daytimes to do life, and work synchronized with you/the team till their bedtime. Hey, your company doesn’t have to suffer just because the planet is spinning. 😉 Hope you enjoyed this piece. Transition to sustainable remote work with HRQ. Book a discovery call . 🛰 here

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