! It’s been a busy few days for me! See this post on it's original location, github.io What’s Current As I’d mentioned on Hackernoon before, . This bot is currently being fed into the AI with competing genomes using different input variables, to give us the winning generations in terms of configurations. We’re running this market making bot on Deribit testnet and livenet – showing 10% gains on livenet, almost 50% on testnet, but these livenet results aren’t being published anywhere – yet! Coindex and I are admitted into the Binance Futures Market Making Competition – which will soon be integrated to ! You can watch the market maker on Deribit testnet in realtime here coindexlabs.com Next up is the first bot I was hired to create in the last week. Without breaching terms of NDA, it executes trades based on a series of custom price action indicators confirmed twice by regular ol’ indicators. It’s currently up 0.7% in the last three hours on Binance Futures You can , ! watch it live with one indicator confirming trend here or two indicators to lessen the noise here This bot will be available for a small subscription fee in the future times, and the benefactor has even agreed to share some of that subscription money with me – for the win! It’s so far been running 2-3 days in profit. Aweo! This bot’s ideationmaster has given me more and more income to add indicators, exchanges, and in the future it will even have Telegram bot reporting. A second bot I was created to hire uses a genius system to identify support and resistence, and enters in Binance Futures limit post-only too – exiting when trends reverse at market and entering in new post-only orders to win in the next trend. It’s currently up 6.5% although it hasn’t traded in a little while, have no fear! It requires the trend to be confirmed one way or another over the course of some other safety inputs. . I don’t know if this bot’s benefactor wants to sell access to his creations or just throw some serious capital at them – stay tuned for details! Either way, he has decided he’s going to continue feeding me bot projects so I can concentrate on being productive while having the ol’ rent paid You can watch the delta of the delta for this one live here What’s Next Coindex and myself and some of the bot ideationmasters we’ve mentioned will be working on ways to hedge losses in the case our bots see stoplosses. What this means for Coindex at least is to use different entries for long calls+puts on the same instrument and expiry, which is called a long straddle or strangle. If the price moves up OR down significantly (causing losses on market makers) then the options will go out of money and simultaneously in the money at the same time, and at leverage on a deriviative one of them will be worth some serious money! While we’re happy to use Deribit for this, we’re excited to see a new player: Binance JEX, which supports options on many more types of underlyings. What’s beautiful in the above screenshot (among other things…) is the dynamic leverage based on volatility. One can hedge using a fraction of the funds and balance one’s exposure with their hedging – and while the market maker makes money and the options lose money, we’re still smiling. When the market maker hits stoplosses and the options make money – we’re still laughing. Do You Want to Know More? !! Click here to subscribe: http://eepurl.com/gIykNL Be notified about new articles? Welcome to the Jarett Dunn email subscriber list! Each new signup will receive a link to download the Coindex Labs non-NDA teaser, which includes information about the value proposition for my organization – where we’re setting our sights first on a money-printing machine, then returning later as conquering heroes in order to then defeat the world’s greater humanitarian issues. Remember to CLICK, subscribe: http://eepurl.com/gIykNL !! ( : ) Disclaimer The Author is the Chief Liquidity Officer at Coindex

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In the West, you would be hard pushed to come up with a handful of cryptocurrency or blockchain companies from Russia that operate successfully and prominently outside of the country (beyond neighbouring ex-bloc territories). It’s a similar situation for almost any industry from the country, FinTech and beyond, and a large reason for this comes as a result of sanctions imposed by the U.S. government. Considering ongoing russia-phobic sentiments being spread in the USA as well as Europe, it would be hard to see such an enterprise even being marketable in the current climate. There are actually operated by Russian nationals in the West, however they predominantly establish headquarters and brands in the local regions to avoid scrutiny from the press – as well as build a locally friendly image. many companies Even these efforts, however, are not enough to prevent McCarthy-esque headlines such as ‘ ’ – which was published by the UK paper The Telegraph, back in May 2019. Revolut’s ‘Kremlin links’ to be probed as politicians warn digital bank could risk national security Recent Crypto News Russia There has been a recent increase in blockchain-focused activities coming from state-approved organisations, as well as the Russian government directly. This appears to be in correlation with the aforementioned problems facing Russian businesses and entrepreneurs. Take, for example, the publication of an official whitepaper from the Russian National Settlement Depository (NSD) – “the largest securities depository in Russia”, which outlines the institution’s ‘Vision of Blockchain Use in Financial Infrastructure’. Lawmakers have also recently been closing in on plans to create standardized legislation on digital asset tokens, as well as a law which would enable authorities to requisition cryptocurrency funds from suspected and convicted criminals. In addition, the Russian Central Bank announced its intentions to implement or create a gold-backed cryptocurrency. China and Russia: Parallel Trends Although it is difficult to conclude the myriad of reasons each country may have, there are some notable links between Russia and China on the geopolitical stage. Both countries are facing significant trade sanctions, from the USA and (by extension) other Western nations at present. A move towards cryptocurrency based economic models may help each nation respectively overcome these restrictions, as well as those imposed by the ubiquity of the U.S. Dollar standard. Another point of comparison is with the recent gold-purchasing rush exhibited by both countries recently – which perhaps reflects the disparity between their respective global economic prowess, with the potential fragility of a currency which is not backed by tangible materials. The main question to ponder upon finishing this article would be: are the increasing US trade war sanctions and employment of anti-Russia and China sentiments as common political currency driving these countries towards cryptocurrencies? Russophobia and sanctions (similar with #China) decrease the purchasing power of their fiat currencies (ruble and renminbi)… further incentive for the adoption of digital tokens. What could be the implications (legally and economically) were either to employ cryptocurrency officially and back it with their massive gold reserves? Recent Crypto News from China Although the trajectory of news coming out of Russia has been much more consistent, with a longer tail than China,, there are parallels that can be drawn with the intensification of national cryptocurrency activities in China. China has been pushing towards what appears a standardization, legitimisation, and even state-backed support for cryptocurrencies and blockchain at an even faster rate than Russia – and most of the news has come out of the past 30 days. Earlier this month, it was revealed that a national regulator had removed a previously proposed ban on cryptocurrency mining in a 2020 update to an official guidance document originally published in 2011. Subsequently: the President of China, Xi Jinping, delivered an official endorsement for cryptocurrency as well as later advocating for increased blockchain adoption in the countries financial and technology sectors. This message was so successful that it led Jinping to deliver another statement in an attempt to calm the nerves of eager investors. Russia and China have some similarities with regards to cryptocurrency and blockchain activities, in light of their respective economic and global-political positions. Read more about this in my article: ' Is China Laying the Groundwork for a State Backed Token?' This news feature was originally published on news.daex.com on 15th November 2019. For more stories, click here .

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We skipped last year, but this year SparkLabs Group is back with our . fourth rankings and report of the Top Ten Startup Ecosystems in the World These past few years we have seen the rest of the world catch up a bit to Silicon Valley, but it is still the clear leader in startup growth and innovation. Almost every city increased its assessment numbers, apart from London, which was affected by Brexit. Even so, London barely maintained the tenth spot, with Berlin hot on its tail. There was strong movement from Beijing, which pulled away from a prior tie with Tel Aviv to become the clear second-place leader after Silicon Valley. Stockholm inched past Tel Aviv for third place, while Tel Aviv dropped to fourth. New York city (NYC) and Shanghai both moved up into a tie for fifth place. Los Angeles and Seoul are tied for seventh, and Boston and London remained in their respective prior positions. The rankings for 2019 are: 1.  Silicon Valley 2.  Beijing 3.  Stockholm 4.  Tel Aviv 5.  NYC 5.  Shanghai 7.  Los Angeles 7.  Seoul 9.  Boston 10. London The world is truly becoming flatter in terms of innovation and startup development. This year was the first year that we saw the majority of the startup ecosystems move upward. For years, there has been discussion on how access to information and the transfer of knowledge has helped close the gap between Silicon Valley and the rest of the world, but finally you see more tangible results. From our global deal flow across our nine accelerators and three venture capital funds, we see world-class entrepreneurs in many cities across the globe. The talent is getting better and better, especially in the areas of software development, UI / UX, and product development. The execution gap is shrinking between Silicon Valley and the rest of the world. The more difficult aspect to transfer is culture. is its secret sauce and differentiator, along with its density of talent and mentors to guide founders. Culture can be learned, and we do see it happening in Beijing and other locations, but this takes much longer than transferring execution know-how. Silicon Valley’s “pay it forward” culture For our study, we looked at eight factors: •  Funding Ecosystem & Exits •  Engineering Talent •  Active Mentoring •  Technical Infrastructure •  Startup Culture •  Legal & Policy Infrastructure •  Economic Foundation •  Government Policies & Programs. Here are the cumulative scores (out of a total of 80 possible points) for each of the top ten startup cities: Our analysis is primarily based on venture capital insight and metrics, and our on-the-ground perspective of innovation ecosystems in different parts of the world. This contrasts with other studies, which might rely more on surveys, or are not that knowledgeable about many markets in Asia, or don’t assess startups for actual investment purposes (as our team does). For example, while Singapore is well known as a strong hub for Fortune 1000 companies to set up their APAC headquarters, its startup activity, investments, and historic exits don’t come close to the activity in Seoul. South Korea has consistently been producing impactful tech companies — starting from the mid-90s, when Nexon (US $12 billion market cap) and Naver (US $23 billion market cap) were founded to today’s unicorns (companies with a valuation of more than US $1 billion) such as Coupang (US $9 billion valuation) and Toss (US $2.2 billion valuation). So several years ago, our team as a whole wasn’t that interested in investing in Singapore-based startups. There were too many government-backed accelerators, and a lot of startup activity on a road to nowhere since there weren’t many venture capital funds focused on the Series A rounds. But now, our team is bullish on Singapore. The quality of startups has greatly increased, there are more early-stage venture capital funds, and the noise-to-reality ratio has greatly improved. Even a few years ago, Singapore wouldn’t have been in our top 20 — but today it is. When analyzing a region’s startup ecosystem, factors such as the number of unicorns and exits are just one part of our overall assessment. Even though Beijing is second on our list this year and is also second in its number of unicorns, we've previously had Tel Aviv and Stockholm ranked as number two, with both cities having only single-digit numbers of unicorns. For our rankings, we also consider macro-trends, such as Asia’s rapidly growing middle class. While the global middle class is expected to grow from 3 billion to 4.9 billion people by 2030 and two-thirds of that growth will come from Asia. The overall promise of Asia’s growth and impact on innovation should be met with some reserve due to current geopolitical tensions, which includes the trade wars and corporate espionage. Many manufacturing centers have shifted out of China to Vietnam, and R&D projects have moved to Taiwan and South Korea. It is uncertain how these moves will affect the startup innovation engine in China. Vietnam and India are two promising markets where venture capitalists are increasingly active. Both have good to great engineering talent and a strong entrepreneurial culture and drive. Vietnam’s angel and venture capital ecosystem is still far behind Silicon Valley and at least 10 years behind India’s, but still holds a lot of promise. On the heels of our top ten list, we see up-and-coming startup ecosystems continuing to develop further, such as Singapore, Chicago, Paris, and others. Berlin was very close to re-entering the top ten and displacing London, so some on our team are already predicting that Berlin will be back in the top ten next year. Its entrepreneurial energy is palpable and we love many of the founders that we have met there. However, Berlin’s venture capital environment doesn’t seem to match this energy. Let me know what you think about our rankings — and tell us, what innovation ecosystems did we miss out on?

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With the maturing of the cryptocurrency industry, the ecosystem and services surrounding it, have also consequently evolved. From exchanges to wallets- the supportive infrastructure has grown besides the expansion of this industry. While there has been significant progress, users still need to be careful while choosing the support, including wallets and exchanges, in a crypto eco-system. History has witnessed the loss of millions of dollars with , resulting in users literally ‘paying the price’. It, therefore, becomes vital to thoroughly research the options available while choosing the one that meets your needs. the Mt Gox scandal The cryptocurrency users today have a series of options for wallets to choose from. In this article, we take a look at the key features of different kinds of wallets available for you in the market today. Hardware Wallets The hardware wallets are the physical devices that are used to store private keys. The advantage of this wallet is that they are the most secure option available to tuck in your crypto funds. The disadvantage is that you will need to connect them to a computer in order to access your wallet, thus making them relatively less accessible. Ledger Nano Currently considered as one of the best wallets for storing altcoins, the hardware wallet comes in USB sized device. It is a multi-cryptocurrency wallet supporting more than 700 digital currencies and tokens. Further, it can also easily integrate with multiple cryptocurrency software wallets. The cryptocurrencies inside the wallet are stored offline, hence making it impossible to be hacked. Ledger Nano The key features of security provided by Ledger Nano prevents your cryptocurrency funds against malware attacks and threats of hacking. The recovery process can be directly done from the device itself. Pros- It is a bit expensive, as most of the hardware wallets are. Absence of a password manager. Cons- Trezor is another hardware wallet, shaped like a USB drive and further supports multiple cryptocurrencies. The interface is simple, easy to use and supported with a sleek design. The device is supported on major operating systems including Windows, Linux, and Mac. Trezor The hardware wallet adds an extra layer of security using a randomly generated PIN number. Additionally, it also limits access given to third parties. Pros- It is a bit overpriced. Cons- Mobile Wallets Mobile wallets are fairly convenient and easier to use as compared to other options available. With a mobile wallet, you can check your account transfers or make in-store payments using QR scanning instantly. However, mobile wallets also face the same concerns as a desktop wallet. Your private keys can just easily be stolen or hacked. Coin Bitcoin Wallet is an open-source wallet available as on Android, IOS and Windows. It supports prominent cryptocurrencies including bitcoin, Ethereum, and Litecoin. The mobile wallet provides security using  AES-256 encryption and a 4-digit PIN login. It does not store your private keys on its cloud or server. Hence, the control of your funds remains in your hands. Coin Bitcoin Wallet The control of your crypto funds remain in your hands. It gives you complete privacy to your identity by not linking personal information like name, email id to your wallet address. Pros- It does not support multi-signature usage. 2 FA authentication is missing. Cons- MyCelium The , a mobile-only wallet, allows users to send or receive bitcoins. The wallet is currently available on Android and iPhone. It supports security features using cold storage functionality and is integrated with third-party apps like Trezor and Ledger Wallet. Mycelium Secures wallet using a PIN. It provides some of the additional features including searching for the nearest bitcoin seller and multi-currency viewing Pros- Complicated; especially for new users. Cons- Software Wallets Software wallets or desktop wallets are locally stored inside your desktop or laptop’s hard drive. The disadvantage is that software wallets are more susceptible to hacker attacks as they are remotely connected with the internet. On the upside, they have significant advantages if you are trading in small amounts. Electrum The software is one of the oldest providers of cryptocurrency wallets. The platform is fast and easy to set up. Supporting bitcoin, the electrum wallet ensures the security of your private keys using 2 separate levels of encryption. The software can easily integrate with some of the hardware wallet providers including ledger and Trezor. Electrum The enabling Simple Payment Verification (SPV) feature that can instantly verify transactions using fee adjustments. Pros- The limited number of cryptocurrencies supported. Additionally, its interface is a bit tricky for a beginner. Cons- Exodus is a desktop-only software wallet that supports around 100 cryptocurrencies. This wallet is fairly easy for a beginner to operate. On exodus, you can directly trade bitcoins and other altcoins in the wallet itself. The wallet rendres privacy features by not requiring you to reveal any personal information such as your mail-id. Exodus Intuitive and easy interface. Facilitating direct transactions between two cryptocurrencies. Pros- Limitations in security features. Lack of 2FA authentication/ Cons- Online Wallets To be fairly honest, online wallets are comparatively quite insecure as compared to other wallet options. The access to your private keys remains in the hands of third-parties. The advantage of an online wallet is that you can access your funds using the internet anywhere, anytime. However, they should only be used in case if you want to transfer your funds from one place to another. Guarda The online wallet is a multi-currency wallet supporting a number of different cryptocurrencies and tokens. It is a non-custodial wallet, meaning that it does not store your private keys data. Overall, its system is user-friendly and can be managed from any device. Guarda Supports a wide range of cryptocurrencies. It provides a seamless transfer of your assets from one coin to another without complex procedures. Pros- It lacks advanced unique functions as compared to others. Limited Security. Being an online wallet it is prone to hacking and cyber thefts. Cons- Coinbase A popular cryptocurrency platform, facilitates transactions of different cryptocurrencies that are further stored in its online servers. The exchange claims that private keys are not stored inside the coinbase servers and users retain full control over their wallet. The wallet is quite easy to use even for a beginner. coinbase Easy transfer of your crypto assets from from one wallet to another. Provides 2 FA authentication Pros- Requires identity verification, which is a concern for some users. Limited support of cryptocurrencies as compared to its peers. Cons- Paper Wallets Paper wallets are one of the safest ways to store your cryptocurrency funds. It is a software program that basically generates a set of your public and private keys. They are then printed on a piece of paper along with a QR code and kept offline. However, if you lose the piece of paper, you can also lose access to your funds. and allow users to create and print your private keys and QR codes on a paper. BitAddress Bitcoinpaperwallet Final Thoughts We have explored all the different options available in the market today as well as the pros and cons of each one. Each of them has something to offer- while some are focussed on providing security others are focussed on creating easy accessibility. Alas, no one wallet has it all! Ultimately, it comes down to your needs- how much funds do you have, how frequently do you plan on using it, the measure of privacy do you need, the amount of security you need, and so on. Further, you can also choose a different approach to combine different wallet options. However, whichever method you choose, it requires thorough research and thinking on your part. Lastly, it is a fact that the crypto sphere is expanding. Consequently, more wallets with advanced features will be added to the market. Will there be one that caters to all our required needs? Only time will tell. Disclaimer: I do not have any vested interest in any of the mentioned projects.

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What's In A (Crypto) Wallet? Hardware Wallets vs Software Wallets vs Online Wallets

2019 has been the year of . With less than 2 months to go before we march into 2020, I think it’s a safe claim to make now. What’s surprising here is that barely a year ago, crypto pundits had almost unanimously declared that 2019 would be the . But when has the crypto market ever listened to the mandate of the people? So what started as a novelty in January, had become a rage by the middle of the year. And although the intensity has reduced a bit now, there is no sign of the IEO chariot stopping. IEOs year of STOs ICO Bad, IEO Good The last quarter of 2017 was possibly the best time to be a crypto investor. Bitcoin was reaching new highs every other day, altcoins were pumping as if on steroids, were giving insane returns. It looked like nothing could stop the crypto market capitalization to cross the trillion dollar mark. And then it all turned sour. 2018 saw Bitcoin crashing through the floor, dragging down the entire crypto market along. ICOs ICOs lost their charm, with most of them getting dumped on listing. A handful (such as Quarkchain, Elastos and Holochain) still managed to return multi-fold profits, but the charm associated with ICOs was gone. In fact, a lot of these ICOs ended up being mere . They were even for the fall of the crypto market, with people claiming that ICOs selling off their raised funds was what had caused the bear market! exit scams blamed ( ) BTC price started its uptrend in the first quarter of 2019, and with it we saw the rise of the IEOs In essence, IEOs from ICOs – both are instruments through which blockchain projects raise funds for their growth and development. In case of an ICO, the onus lies on the investor to assess the legitimacy of the process; a tough task for an ordinary individual. On the other hand, the token sale of an IEO is conducted by a particular crypto-exchange. Since the exchange’s reputation gets associated with the project, it’s fair to assume that the exchange would have diligently audited the project. aren’t much different Furthermore, IEO sales are invariably followed by the listing of the project’s token on that exchange within a few days of the conclusion of sales, providing liquidity to investors. In case of ICOs, token sales with a guarantee of listing, or delayed for months in some cases (cough, Wanchain, cough)! And finally, exchanges typically allow only verified customers to participate in their IEOs, taking care of all KYC requirements on behalf of the project. didn’t even come Binance and the Birth of IEOs The modern-day hullabaloo regarding IEOs might have started with Binance’s of BitTorrent’s token sale on their Launchpad platform back in January, but they had actually dabbed with this concept as early as 2017. Conducted in December of 2017, during the peak of the bull rush, and were technically the first IEOs. Back in those days, people had failed to appreciate Binance’s tactical move, and had shrugged them off as just another profit-making ICO. announcement Bread Gifto Hosting token offerings involves dealing with a host of regulatory and supervisory issues. Binance kept their cards close to their chest for a year after that, refined their Launchpad procedure, and announced their return to the scene with a bang (BitTorrent actually in USD ATH). did a 15.4x This IEO model was soon picked up by other exchanges, and a host of IEO platform announcements followed – KuCoin came up with , Huobi launched , and OKEx gave us to name a few. Spotlight Huobi Prime Jumpstart The success of BitTorrent was repeated by and , which piqued people’s interest in IEOs. Around the same time, Bitcoin broke out of its year-long slump, bringing cheer and positivity back in to the crypto-markets. This helped the cause of the IEOs to a great extent as well. If this is anything to go by, IEOs listed on most of the large-volume exchanges have generally done quite well, so much so that Binance got quite frisky and even toyed with the for a while. Fetch.ai Celer report idea of IDOs Every self-respecting exchange has a platform for conducting IEO sales today (image courtesy CryptoPotato ) Life After Listing Just like the ICOs in their heydays, the first few months of the IEO chapter ran on steroids. The craze surrounding projects that got selected through Launchpad was reminiscent of the madness surrounding altcoin listings on Binance in 2017. Investors started buying (still untradeable) tokens for as high as 4x of their IEO price through OTC channels on Telegram and Discord. Projects like , and kept the momentum on. Other exchanges also started making their presence felt, surpassing Binance in terms of ROI now and then – on OKEx touched 18.1x and on Huobi breached 13.9x in terms of ATH in USD. Matic Harmony Elrond BlockCloud Top Network Unfortunately, life for IEO investors hasn’t always been rosy, specially the ones who pooled through Discord (you know who you are). When it comes to authenticity of the IEOs, there has been the occasional , but for the most part exchanges (at least the popular ones) have done their research properly before selecting a project. In any case, reports of exit scams are almost unheard of when it comes to IEO. bad egg Even so, there is nothing that can guarantee the long term price sustainability of token prices. And what has skyrocketed in a matter of days has usually come crashing to the ground really hard. How IEOs Helped the Exchanges Binance had initially followed the FCFS model for IEOs, but it soon realized that this idea could be utilized to drive up the price of its native token BNB. They swiftly moved on to a new model where the number of IEO tokens a customer could buy depended on the number of BNB in the person’s account. And as has often happened in the crypto world, other exchanges like KuCoin and Huobi didn’t waste any time in adopting this new model again  (seriously, Binance should start considering filing patents for their ideas). This led to a chain of events – greater the ROI of a project, more the demand for the exchange’s token, and higher its price movement. As an aftermath of this model, an interesting situation arose. There have always been accusations (like this by CRED) that exchanges charge projects a considerable amount of money (in tokens) for listing their tokens. As soon as the token shows a positive price action, the exchange sells all the tokens paid as listing fee – no obligation held back the exchange here. article In the new IEO model, however, the price appreciation of the exchange’s token itself became dependent on the success of the projects that were listed. If investors saw successive IEO projects getting dumped, they would lose interest in holding the exchange’s tokens as well. This effectively meant that even if the exchange had been paid a listing fee for ‘selecting’ that particular IEO, they wouldn’t do anything that would cause the token price to crash. Moreover, projects listed through IEOs typically release a small portion of their total tokens to the public on listing, and private investors are paid through monthly or quarterly installments, thereby ensuring that there are simply not enough tokens available in the market to dump the price during the listing phase itself. Inspite of the anti-scam and anti-dumping protection that IEOs offer over ICOs, many projects have seen their token price go below the IEO sale price. Case in point – , a blockchain-based advanced TCP/IP architecture which promises to provide improved quality for dynamic networks. Listed at a price of $.005, BLOC tokens soared to $0.089, before crashing down to $0.0018. Today it’s trading at $0.0024 – a grand ROI of 0.5x. BlockCloud BlockCloud - a great pump followed by a unholy dump Now if the exchange had no ulterior motive of dumping the token price, who exactly was responsible for this? Were there whispers of a scam, or did investors just become disillusioned with the project due to lack of progress? What Determines Long Term Value? It's not even been 10 months into the IEO story, and we already have more than a 100 IEOs to choose from. And though the time period is hardly sufficient to properly analyze the factors that might affect the long term price sustainability of a project, we'll still try to make sense out of this madness here. Top 10 IEOs by Current ROI (as per CryptoRank ) would be a major factor in my opinion. IEO projects listed on exchanges like Binance, Gate.io, OKEx, Huobi and KuCoin have generally returned profits to investors (unless you were waiting for a moonshot and missed your mark). If you don’t trust the exchange, it’s going to be difficult to trust a project which the exchange has backed as well. And while popularity is not the true measure of trust, it’s nonetheless a good starting point in the absence of other indicators. Popularity of the IEO platform IEO ROIs for various exchanges (as per CryptoRank ) There is the curious case of though, which is listed at #10 in terms of current ROI. V SYSTEMS is a blockchain database cloud project that is creating a secure underlying infrastructure platform, with a special focus on DeFi applications. V SYSTEMS V SYSTEMS' IEO was held on little known Chinese exchange ZB.com, where the VSYS token soared up to 24.6x. Even after a considerable correction, the token is trading at 2.8x now. VSYS is listed on KuCoin as well, and it can be argued that KuCoin’s reputation had much to do with their performance, but it still remains an exception to our hypothesis here. is another critical factor. Announcements of new exchange listing assures investors that the project is at least trying to increase their token liquidity, if nothing else. Moreover, every exchange might not be available to users all over the world. Under such circumstances, the possibility of trading tokens on multiple exchanges becomes even more important. Token liquidity Binance itself had from accessing their website, till they came up with their US counterpart. restricted customers in the US A notable exception here is , #4 in our list of IEOs ranked by current ROI. Tokoin is a blockchain startup from Indonesia which is trying to accelerate the growth of emerging markets is South-East Asian countries by using distributed ledger technology for identity verification and transaction book-keeping. Tokoin Listed on KuCoin through their Spotlight program almost 3 months ago, they are yet to be listed on another exchange (as per ). That hasn’t affected their token price, and although it’s down from its ATH of 9x, it’s still trading at a more-than-respectable 4.2x. CMC should be another factor affecting the token price performance. As has been typically seen in case of ICOs too, projects which target a lower during their sales have more space to grow in the market, and on an average outperform projects which start with larger market caps in terms of ROI. Amount of funds raised through IEO hard cap IEOs which have done well have usually had their hard caps set between $0.5million to $3million, a range which can be considered to be reasonable for a blockchain project. Do keep in mind that projects usually also raise funds through private investors simultaneously, but the bulk of the initial circulating supply is comprised of tokens sold through the IEO. But just like the other 2 cases, we have (#7 in the list of IEOs by current ROI) spoiling our theory here. BitTorrent is a peer-to-peer network running on the TRON blockchain, which allows content creators to directly monetize their work and earn payments in crypto. BitTorrent BitTorrent’s hard cap of $7.2million can by no means be considered to be moderate. Going by Binance’s , the initial circulating supply of BTT tokens actually corresponded to a market cap of $10.8million. And the token price skyrocketed to 15.4x, corresponding to a market cap of $166million! So much for our assumptions. IEO details page So, What’s the Secret to Success? Only the top 10 IEO projects were considered as a sample set, and we found an exception to each of our hypotheses. If we dig deeper, I’m sure there will be many more. Reputation of exchange, higher token liquidity, initial market cap, nothing seems to matter so much. Is it back to the Wild West days of the ICOs then, when tokens would just pop up for no reason whatsoever? One common factor which ties these 3 projects is that they are led by individuals who have established themselves as virtuosos in their respective fields. , CEO of TRON Foundation, is also the . While he is hated by more than those he is loved by, his contribution to establishing Tron as one of the top 10 coins by market cap can’t be ignored by any means of imagination. Justin Sun owner of BitTorrent V SYSTEMS’ Chief Architect is , the creator of Proof-of-Stake consensus algorithm and “the single most original altcoin developer” as per . And as for Tokoin, their CEO leads a group consisting of multiple sectors and industries, and has been the ‘Top 2 Indonesia Successful Young Entrepreneurs Under 40’. Sunny King Vitalik Buterin Reiner Rahardja awarded So yes, there’s no magic formula, but just sheer hard work and a sense of commitment which can ensure that an IEO gives positive returns to its investors. All 3 of these exceptions have working products out in the market today, and the same holds true for other projects in the list of winners too. And even though IEOs might be safer to invest in than ICOs today, the truth is that reading about the project’s vision and looking up the team’s credentials is the only possible way of making an informed choice. But you knew that all along, isn’t it?

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Are IEOs a Passing Fad or Are Their True Value Yet to Be Unlocked?

Already available on Bloomberg, Reuters and TradingView, the CIX100 index of the 100 most active cryptocurrencies has finally landed on the Nasdaq. So there’s no time like the present to talk about the relevance of diversity in your crypto portfolio. What is the CIX 100 index? The CIX 100 is an AI-based cryptocurrency index — see cryptoindex.io or cryptoindex.com. Designed to represent the “tendency” of the market by grouping together the top 100 cryptocurrencies, its permanent update calculation is based on the proprietary algorithm, Zorax. Using artificial intelligence processes (including natural language processing and machine learning), Zorax processes information collected from 9 exchange platforms and on more than 1,800 cryptocurrencies in real-time. Having raised over $11 million in 2019, Cryptoindex’s Russian technical director, Sergey Sheshev, has revealed very little about the particular routines and processes on which the index is based, leaving many to speculate on what’s going on behind the scenes. Taking a look at cix100.com, we can, however, see that the index gives a heavy weighting to Bitcoin (more than 70% of the value), and claims a performance of 1105% — though this does include the huge bull run of 2017, so ought to be taken with a pinch of salt. The need for a cryptocurrency index is clear: it perpetuates the asset class by allowing it to be compared with others (Dow Jones Industrial Average-DJINDICES:^DJI, Nasdaq Composite-NASDAQINDEX:^IXIC, S&P 500-SNPINDEX:^GSPC, etc.). This is essential to be able to study the correlations between different asset classes when looking to optimize your portfolio. Although other alternatives are available (such as the NCI indexes offered by netcurrencyindex.com), the CIX100 benefits from the privileged position of being first in its category, and can pride itself on the approbation of its most prestigious peers. Index CIS100 whose composition is available on cix100.com: "Modern Portfolio Theory" There are many different approaches to the construction of an asset portfolio. For instance, we can establish its list of assets from the fundamental analysis of each proposed asset, refer instead to technical analysis criteria (market asset prices), or base its calculations on sophisticated proprietary ratios. Or, simply, buy an index. Whatever the approach, the basic idea remains the same: to diversify your investment and limit your risk, because, as everyone knows, "you never put all your eggs in one basket”. This model is widely credited to American economist Harry Markowitz who, in 1952, published his article “Portfolio Selection” in the Journal of Finance, which outlined his “modern portfolio theory”. A mean-variance analysis framework which received the Nobel Prize in 1990, Markowitz’s approach allows you to precisely calculate the maximal possible performance for a portfolio asset via: the correlation rate between assets; their variance; and the risk to which the investor is willing to commit (expressed by the standard deviation). The result is the “Markowitz frontier” which expresses all portfolio combinations (i.e. asset allocations), delivering the best performance for given overall portfolio risk. Although taught for decades in Business Schools, modern portfolio theory has since been staunchly criticized because it is considered, although mathematically coherent, to be disconnected from the reality of financial markets (see , and other crash risks that are not taken into account by the MPT), however a mix of low-correlation assets remain the key to all investment strategies. Nassim Nicholas Taleb's The Black Swan Theory Calculation scheme of the optimal portfolio according to the "Modern Portfolio Theory", proposed by Harry Markowitz in 1952 - (F. Bonelli - TheCrypto MBA) Crypto Correlation / Decorrelation A global portfolio is generally constituted of several weakly-correlated asset classes, with the hope that the temporary performance peaks of some will compensate for the temporary underperformance troughs of the others. But to be able to create such a portfolio, we first need to verify that there is a low correlation between assets of the same class within the portfolio. To clarify, we define correlation as a measure of the statistical tendency for variables to behave in the same way at the same time. It is generally expressed as a value between -1 and +1 (-1 = perfect opposition, +1 = perfect correlation, and 0 = no correlation between the variables). Simply, we want to work with assets that are either in opposition or are weakly correlated, in order to offset losses with gains elsewhere. However, things are a bit more complicated than that — after all we want to structure a profitable portfolio. To do this with cryptocurrency, it is also necessary to structure the weights of each selected crypto, and actively manage our selection because the correlation values vary over time. Studies now exist on the correlation between cryptocurrencies which show that “altcoins” remain strongly correlated to Bitcoin during a “bull run” (strong rise in prices). The situation is quite different when the market oscillates or falls. In the same vein, a recent study published by Binance seems to show that a stronger correlation has been established between Ethereum and altcoins than between Bitcoin and the altcoins. The results show that a portfolio judiciously constituted of coins selected from the Top 100, and frequently rebalanced (weekly) will be widely more performant than simply “hodling a Bitcoin bag” (a package of Bitcoins in passive management without trading). And this is precisely the value proposition of cryptocurrency investment funds. But before you jump in, be aware of one thing. The study of correlations and the more “efficient” calculus of the portfolio requires access to large datasets and a number of complex calculations that are generally beyond the reach of an individual. That’s not to mention the management of trading operations that allow the portfolio to be constantly adjusted (rebalancing, trading cryptocurrencies, etc.). And it’s for this reason that an index like the CIX100 has real value — it does all this work for you. Market Making A word of warning. An index like the CIX100, which has been issued by a private company and which makes recommendations for the purchase and sale of assets, may be misused. If investors and institutions are allowed to affect index management decisions, it will quickly become a formidable market-making tool, able to use the volume of transactions it generates through its users to "make the market" on its own. For example, if the index indicates that it will take a cryptocurrency out of the market and makes a downward recommendation, a large numbers of speculators are going to follow this recommendation and sell, which will cause the rate of the cryptocurrency to drop sharply and make the position of the index “self-predictive”: as long as some smart guys anticipated the phenomenon, they only need to “short” their positions on the coin (i.e. focus on lowering the price through short selling) to collect a comfortable benefice on the basis of a price movement that they have triggered... This sort of market manipulation is endemic to the cryptosphere, and only adds to the sulphurous reputation of cryptocurrencies because it is still very poorly regulated (and punished). For instance, many will turn to Telegram groups, which are very popular in the crypto-world, for clues to market trends, but many of these groups are attempting to make a market out of budding investors too. You think you have privileged access to market information by subscribing to a paid group, while you will, in fact, be used as a servile executor as part of the market-making strategy which allows the group's administrators to enrich themselves on your back. Investing in cryptocurrencies is no leisurely cruise.

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Crypto Culture: Should You Diversify Your Crypto Portfolio?

In this tutorial, you will learn how to make gradient app bar in flutter ? Before start anything, In every code we need a page for contain our whole source code. So let’s start… ; { _AppBarState createState() => _AppBarState();
} { Widget build(BuildContext context) { Scaffold(
        appBar: AppBar(
          title: Text( ),
        ),
        body: Text( ));
  }
} import "package:flutter/material.dart" class AppBar extends StatefulWidget @override < > class _AppBarState extends State AppBar @override return "Custom Gradient AppBar" "XXXXXXX" We have used the in our code above, just a simple one. It will show an app bar with a title. It is easy to use. It usually uses with the parameter of the . AppBar appBar Scaffold Now the quetion arises is it possible to convert a simple appbar in gradient appbar ?? Yes, it is possible, let’s see Here in the appbar there is simple property which is . In that we can use a widget. So now we simply use a and gives a gradient layout using linear or any other gradient method. flexibleSpace flexibleSpace Container appBar: AppBar(
      centerTitle: ,
        title: Text(widget.title),
        flexibleSpace: Container(
          decoration: BoxDecoration(
            gradient: LinearGradient(
              begin: Alignment.topLeft,
                end: Alignment.bottomRight,
                colors: <Color>[
              Colors.red,
              Colors.blue
            ])          
         ),        
     ),      
 ), true In this above code, we use gradient method for color and that’s solve our problem previously published at https://fluttercentral.com/Articles/Post/1202/Flutter_Gradient_AppBar github repository: https://github.com/Shubham-Narkhede/gradient_app_bar

How To Create Simple Gradient App Bar With Flutter

Our Rails’ version was 4.2 and we needed to upgrade to a later version mostly because Heroku stack requires it. There are many posts and instructions out there, describing how the upgrade process should be done. There is, of course, the official rails documentation (which is great!), and a lot of other great posts (which can be found in the resources section below). You’re probably wondering… why do we need another post? Well, as much as I searched, there was no single post that describes how to actually perform the upgrade, step by step, with all the issues you might run into along the way. I chose to write this post to describe upgrade process and mostly emphasise the issues I had to tackle along the way, which are not written in the official manual, but hidden in rails’ source code, other gems, stack-overflow questions or other sources. my This how you shouldn’t do it Starting from the beginning, and how naive I was. Upgrading rails? Sure, no problem. At first, I just changed the version in my rails Gemfile gem ‘rails’, ‘ ’ 5.1 .5 and then simply ran this command to install the dependencies specified in my Gemfile: >> bundle install Oh wait, I forgot to actually update the version rails’ >> bundle update rails At that point, I got a million (no, not really a million) errors indicating my gems were incompatible with the new Rails version. I should have seen it coming, right? But there are so many of them. Let’s try to update them all to the latest available version: >> bundle unpdate Easy, right? Great, now it’s testing time. Trying to run the server… >> rails server Boom. Nothing works. The right way At that point, I had so many changes in my code (created when I tried to fix some of the errors manually) and so many gems were updated (most of them unnecessarily) that I had no idea where to continue my investigation. I decided to do the smart thing and do the whole process again, but wisely this time. Step #1: Upgrading the Gems I chose to take the time and divide the work into small chunks of gem upgrades. I used to understand which gems had to be upgraded. For the gems that were not provided there, I used to investigate their dependencies and tried to understand whether they could be used in rails 5 or not. ‘is ready to rails 5?’ rubygems Some of the gems are already built-in rails 5 (such as ‘ ’, ‘ ’), so you might be aware of those as well. rails-api test_after_commit Upgrading the gems was done in 3 chunks, with each including up to 10 gems. After testing locally, the upgrade was tested for a while in a staging environment, and only then was merged to production. The intent was to minimise the risks. At this point you must be wondering what about the other gems and how do I know if an upgrade is needed? To be honest, I decided to let future Eti deal with that. Step #2: Inherit from ApplicationRecord instead of ActiveRecord::Base Starting from Rails 5.0, all models inherit from which is a new superclass for all app models, similar to app controllers subclassing. This gives apps a single spot to configure app-wide model behaviour. ApplicationRecord Practically, that means that I had to create an class and make all models inherit from it. Pretty straightforward. ApplicationRecord = end < :: . class ApplicationRecord ActiveRecord Base self abstract_class true Step #3: Tag migration with its created Rails version migrations now need to be tagged with the Rails version they were created under. One of the reasons for this is that strings in Rails 4.2 have a default size of 4 bytes. In Rails 5.0, their default size is now of 8 bytes. ActiveRecord In my case, all the migrations were created with Rails 4.2, so I added this version to all of them. < :: [4.2] class BuildBasicSchema ActiveRecord Migration Step #4: Be aware that ActionController::Parameters no longer inherits from HashWithIndifferentAccess Calling at your controllers will no longer return a hash, but an object: params ActionController::Parameter > <ActionController::Parameters {“id”=>” => params 123 ", “controller”=>”users”, “action”=>”create”} permitted: false> This change should not affect accessing the keys in the params hash like , but you should pay attention when using any one of these methods: , , , or any other method that depends on being able to read the hash regardless of and remember to permit the parameters first and then convert it to a hash. params[:some_key] any? map symbolize_keys dig, permitted? params.permit([:params, :to, :permit]).to_h Step #5: Change commands’ directory At this point, I decided to try my luck, and run . rails server Disappointed, I had to solve this error that popped up: config/boot.rb: : 6 in `require’: cannot load such file — rails/commands/server (LoadError) After googling a bit, I discovered that the rails’ authors changed the commands directory structure, so instead of finding the wanted command at it was now located at . rails/command/server rails/command/server/server_command In ’, I required these directories: ‘config/boot.rb ‘rails/commands/server/server_command’ require You can also check the rails repository and the new command structure . here Step #6: Remove some deprecated or deleted methods remove since it is no longer supported. The following was deleted from the application’s config file. raise_in_transactional_callbacks # Do not swallow errors after_commit/after_rollback callbacks.
config.active_record.raise_in_transactional_callbacks in remove quotes around in the application’s config file. You can read more about . Rack::Cors Rack::Cors here has been deprecated in Rails 5.0 and removed in 5.1. Use instead. before_filter before_action is deprecated. You can read about replacements for change related methods . Attribute_changed? here Replace ‘ ‘ with ‘ ’ render text render plain Step #7: Define the callback before using skip_before/after/around_action , , and will now raise an if the specified callback doesn’t exist. skip_before_action skip_after_action skip_around_action ArgumentError If you wish to keep the current behaviour, you can prevent these errors from showing with ‘ ’ and that lets you opt out of the new behaviour. raise: false skip_before_action :verify_authenticity_token, : raise false That’s it. The server ran successfully. Now what? I used to test our endpoints to make sure I got the wanted responses and it seemed like the application looked pretty much ok. postman Moving forward, I started to run our specs beginning with the controllers. I followed one rule — the fixes should be in the code and not in the tests, except for the next step: Step #8: Fix the Controllers’ specs HTTP request methods will accept only the following keyword arguments: , , , , . So I had to add to all my tests params headers env xhr format params Step #9: Make sure not to pass ActiveRecord to .find method If you do so, you’ll probably encounter the following error: You are passing an instance of ActiveRecord::Base to `find`. Please pass the id of the object by calling `.id` So, as the message indicates, try to pass the object’s ID instead of its instance. Below is an example from my tests: Step #10: Make sure to specify a response in all controllers’ actions In Rails 5, controller action responds with by default, unless a response is specified. great post explains the subject. ‘No content’ (204) This And that’s it.. It’s done. Our Rails 5.1.5 app is up and running! More resources: official rails documentation another posts describing how to upgrade rails from 4.2 to 5.0 can be found and here here Know some other steps I missed? Share with me in the comments section.

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How I Upgraded Rails to Version 5.1.5 And Lived To Tell The Tale

Hey freelancers, I have a million dollar question for you: How Long You Wait To Get Paid? Freelancing is one big waiting game. First, you wait to win a project. Then, you wait for a client to review your work. Finally, you have to wait to get your money. What can you do about it? You can’t force someone to award you a project. You also can’t skip a review period. So, what’s going on with your money from the moment a client release a milestone to the moment you eventually get it? It travels through the system of your favorite freelance platform. That’s a lot of waiting. Everything comes to the one who waits. Whoever came up with this proverb didn’t work as a freelancer. So, I did some research. Fair and square. I checked the terms that regulate payments and billings on the top five platforms in the freelance industry. Just to clarify. I focused my attention on hourly projects. I consider them to be the golden standard for freelancers. Here are my findings. Upwork This picture is worth a thousand words. Screenshot Upwork Let’s say you’re done with your work for the previous week on Sunday. You’ll get your money ten days from that day. My fellow freelancers call this one “the third-week Upwork’s payment rule.” It is what it is. So, let’s move on. Freelancer dot com Here are the things a bit more complicated. Screenshot Freelancer dot com I think that these rules apply to both fixed-price and hourly projects. So, I had to dig a little deeper. Screenshot Freelancer dot com As it seems, Freelancer dot com makes it possible for you to wait one week less compared to Upwork. You get your money on Wednesday (the 2nd week) rather than on Wednesday (the 3rd week). That’s much better. Fiverr Here’s a line that says it all. Screenshot Fiverr Two weeks, unless you are a top rated seller. That’s it. Toptal It seems that Toptal is a platform of few words. Screenshot Toptal What’s this supposed to mean? Twice a month. Two weeks. Right? So, that’s Fiverr payment style. But, there’s a catch. Two weeks plus a review period for a client. How long? A few days or the whole week or two? Honestly, I couldn’t find additional information about this one. goLance If you don’t like to wait, then you are going to appreciate what this platform offers. Screenshot goLance There’s a Payday Advance option I haven’t found anywhere else. If you choose to use it for a small fee, you don’t have to wait for a client’s review period. You can get your money on Monday. That’s great! You are done with your weekly work on Sunday and the money is available the very next day. Now, you still have to pay for it. So, goLance decided to take it a step further. If you are your client’s trusted freelancer, then he can use the Variable Review Period. Meaning, this period can be simply turned off and you can get your money right away. It’s the same as if you’re using Payday Advance, but the difference is that you don’t have to pay a fee. Do We Have A Winner? Let’s sum up my findings: #5 Toptal — two weeks plus a review period (unknown). #4 Fiverr — two weeks OR one week (top rated sellers). #3 Upwork — ten days. #2 Freelancer dot com — three days. #1 goLance — one day (Payday Advance OR Variable Review Period). The numbers never lie. goLance is actually a two-time winner. Why? They made an obvious thing between clients and freelancers official part of their payment policy. If you are working with the same client from week to week and month to month, then you have built a trustworthy relationship already. Why do you need a review period in the first place? Right? If you don’t want to wait to get paid then use Payday Advance. If you don’t wait to pay a Payday Advance fee then work hard, so your client can “turn off” the review period. The waiting problem solved. You get your money right way. Who says that you have to wait to get paid? It’s up to you to decide where you’re going to work and how long you’re going to wait to get paid.

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Mastering a programming language takes years of time but learning a new language does not. And Trust me, Nobody is perfect when it comes to coding. As a software engineer, one should be at least familiar with minimum 4–5 different languages or at least he should know how to learn a new language in small amount of time. Well, just to let you guys know, i recently switched from python and javascript to Golang. So, This post is just an attempt to guide developers on how to smoothly switch from one language to another. Note : [ This post is for people who have prior experience of any programming language and wants to learn practical Go programming concepts in a quick and easy way (just by looking at Go code !) ] Step 1 : Why does the language exist and what are its advantages Golang is a very powerful and popular programming language in the software industry. Golang is expressive , statically typed, compiled language, is fast and reliable and a lot better than JavaScript and Python in many ways. It is slowly gaining momentum and is becoming the first language of choice among many developers for developing software’s, modern web apps and app backend. It is used to make a large scale and reliable apps that involves concurrency. The only con of using go is that their are very few number of resources on the internet to learn or to do/complete tasks and develop software. Step 2 : Setup, Installation & running the “Hello world” Program . In order to learn a new language one needs to download the language (binaries /SDK) itself. So, simply download golang by clicking on the link below. Link : . Set up a workspace and create a basic go file in the text editor, copy and paste the below code and run the file . https://golang.org/dl/ Directly run the file by : go run <filename.go> Or compile it to make an executable file by : and then run it as an executable by go build <filename.go> ./<executable_file> main { fmt.Println( ) } package import "fmt" func main () "Hello World !" If the code outputs Hello World ! You are good to go :) Few Noteworthy points : Every file that we need to execute must have a main package at the top. Next comes the import statement for reading and writing. Next is the main function from where the program starts. Step 3 : Basics of Programming, Syntax and Coding Patterns. When it comes to programming, basics remains the same. No matter what language we are learning there will always be data types, if else statements, loops, switch statements etc …. Lets look at the basics of Golang. Here, i will be discussing about : Data Types Control Statements Functions (defining and declarations) Loops Pointers Error Handling Packages (creating and importing) creating data structures Lets look at them one by one. Data Types Like all other languages, Golang also supports a lot of similar primitive datatypes like int , float64, strings ,bool etc … let’s look at the syntax : < var > <variable_name> <data_type> = <value> syntax 1 : <variable_name> := <value> syntax 2 : x fmt.Println(x) x := fmt.Println(x) name := fmt.Println(name) array [] { , , , , , }
fmt.Println(array) fmt.Println(array[ ]) (array, )
fmt.Println(array) var int // output 0 or 5 // output 5 "Karan" // output karan var int 1 2 3 4 5 6 // output [1,2,3,4,5] 2 // output 3 append 7 // output [1,2,3,4,5,7] Control Statements, Functions, Importing packages Let’s look at the basics of control flow statements like ( if else, switch, loops ) , function declarations and function calling in Golang with the help of an example. of a function can be seen below. Syntax func <function_name>(param_name param_type) < return_type>{ code } : go install <package> or go get <package> Syntax for fetching package main ( ) {
  add_of_number := sum( , )
  square_of_number := square( )
  factorial_of_number := factorial( )
  fmt.Println(add_of_number,square_of_number,factorial_of_number)
  print_n_numbers( )
} { x + y } { x*x } { x < { } x*factorial(x )
} { i:= ; i<x+ ; i++ { fmt.Println(i) }
} // 1st line is always the package package // Importing basic packages in golang import "fmt" func main () 5 10 5 5 3 func sum (x , y ) int int int return func square (x ) int int return func factorial (x ) int int if 1 return 1 return -1 func print_n_numbers (x ) int for 1 1 // output // 15 25 120 1 2 3 Error Handling, Pointers and Struct types Go doesn’t have Exceptions so we have to check errors manually and also a function can return multiple values. Golang struct are used to combine multiple types of data into one. It can also be used to create a new data structure. Lets look at an example. Interesting fact : main ( ) person {
name age height } { number := fmt.Println(&number) 
fmt.Println(number)
increment_number(&number)
fmt.Println(number) sqrt_result , err := sqrt( ) err != { fmt.Println(err) } { fmt.Println(sqrt_result) } p := person{name: ,age: ,height: }
fmt.Println(p)
fmt.Println(p.name)
} { x< { , errors.New( ) } { math.Sqrt(x), } } { *x++ } // 1st line is always the package package // Importing basic packages in golang import "fmt" "errors" "math" // struct type type struct string int float64 func main () // Pointers .. 10 // Error Handling .. 16 if nil else // accessing struct in golang .. "karan" 25 5.10 func sqrt (x ) float64 ( , error) float64 if 0 return 0 "Negative number is not allowed !" else return nil func increment_number (x * ) int // output // 0Xc82000a2f0 10 11  4 {karan 25 5.1} karan That’s it for this post. I hope you liked it. Till then, Keep coding and keep learning.

3 Steps To Learn Go: Moving From JavaScript and Python to Golang 

The things we can do with our phones is amazing and have captured many people's attention. Nowadays no one can move without a phone. Why do you think? Why not? One can use their phones for a hell lot of various reasons. Automation being the center of the source as it is a type of technology which helps you to do things with minimal interference from your side. Smartphone is a great example of automation as It serves each and every purpose, be it in times of emergency, or in the time of leisure, or to contact someone, or reach someone in the time of need, maybe even capturing your favorite moments, oh buy do we know how many moments have been captured in phones and continues to exist. The more time passes by, the more people are relying on the automation system. With the help of automation, many new things can be accomplished. One of the great examples of automation is or mouth taking apps that get the job done with a minimum of effect from your side. Alexa Nowadays phones have taken the role of computers and thanks to them, our lives have become more "smarter" as phones became "smart". But apart from work purposes, it has become our mode of entertainment, various apps such as Facebook, tiktok, snap chat, Instagram, mouth talking apps are not only a mode of communication but also has become the mode of entertainment. People use , Facebook to communicate but it is also a fun app to be in. Instagram, snap chat has become one of those apps where you can upload picturesque images as well as follow others to see theirs. One of the other apps that have become very famous over time is tik too and musically to upload videos that are made enthusiastically and shared on the platform. WhatsApp Similarly, mouth talking apps have been on a spree as people are using it very often. In this article, we will talk about all the things that we have to know in order to help you operate the app. What Is The Mouth Talking App: Mouth talking app is a software which can be activated or operated when you talk. It's none of the ways that the developers have come through to make our phone become more and more operable and easy to access. Mouth talking app is very much in trend and the app has taken place as a way of entertainment. It has become the mode of entertainment for kids as well as for adults too. The app is designed in a way in which one can have a talking image by replacing the mouth portion with your mouth which talks. Nowadays this feature can be seen in snap chat too but there are especially various talking apps that constantly deliver this. It has become a production house of the meme as many people record videos of this sort where they either change the mouth of the concerned person and attach their recorded video on your image or any celebrities for that matter. This type of apps is available widely on Android as well as for iPhone users too. How You Can Utilize This Mouth Talking App You can use this app in numerous ways. when there is technology, there is a will. You can use this app to make and do multiple things and few of them are listed here. You can make a funny apology video to your friends, family or your wife. Trust me, it works well and sure will make your wife laugh. Just write the content. You can record a wish or greet for your loved ones and send it to them on their birthdays or holidays for that matter. It will feel more personal and beautiful. You can make a video out of it to reassure your friends about the commitments they made when they were drunk, or sober. (does it matter?) You can record funny videos and put them online to get or increase your followers. Trust me, increased followers and increased views are really good for your channel or content. You can impersonate your friends beautifully with this kind of apps that can help you impersonate your friend. All you have to do is record a funny moment. You can make a funny video with the face of your pet, it is hilarious and it is one the method with which you can recreate a moment which is very close to your hand. How To Use The Mouth Talking App It is very easy to operate this app. This is no rocket science and requires no complex steps. All you have to do first is to download the app and install it on your phone. When you do that, it is very easy after that. All you have to do is take a picture that you like and record a video and edit that video on that picture. Voila, that is it. Post-it wherever you want. Which Apps To Download There are various apps that you can use to make this app. You have An array of options to go through. There are various face talking apps like SpeakPic, My talking pet app, face changer video, etc. These apps are very trendy and the demand for these is self-explanatory. When you are using this, the result is spectacular.

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Mouth Talking Apps: Know Why They Are Trending On Top

Typically, when we build a single-page application, the frontend and the backend are living in two very separate worlds that are connected with a web API. Even if they are implemented with the same language (JavaScript), they cannot communicate directly using this language. They need something else in between, so we build a web API (REST, GraphQL, etc.), and that complicates everything. First, the web API must be implemented on both sides: an API client in the frontend and an API server in the backend. Second, to transport the domain model between the frontend and the backend, we must constantly serialize and deserialize it. All this leads to a lot of code scattering, duplication of knowledge, boilerplate, and accidental complexity. We get lost in translation. Most of the time, web APIs are not functional requirements. They don't add any value to the product we are building. They are just a necessary evil so the frontend can communicate with the backend. But is that really the case? Wouldn't it be possible to get rid of these web APIs? Liaison I started building to achieve exactly that: getting rid of these "pain-in-the-ass" web APIs. Liaison With Liaison, frontend and backend can communicate directly with the language they are implemented in. The frontend can call a method in the backend without further ceremony. It is just a regular JavaScript method invocation. The way it works is simple: a frontend class can "inherit" from a backend class. So, when a method is called, if this method is missing in the frontend, the corresponding method is executed in the backend, automatically. For example, let's say the frontend is executing the following code: user.follow(anotherUser); await Depending on the implementation of , the execution can happen: follow() In the frontend, if the method exists only in the frontend. In the backend, if the method exists only in the backend. Or both in the frontend and the backend, if the method exists in the backend but is overridden in the frontend. When a method is executed in the backend, the attributes of the involved instances ( and ) are transported to the backend, the method is executed, and if some attributes have changed during the execution, those changes are automatically reflected in the frontend. user anotherUser Conceptually, it works like class inheritance. The only difference is that the inheritance occurs across two execution environments: the frontend and the backend. And when we call a method, it doesn't matter where the execution actually happens. For the developer, frontend and backend become one unified world. So there is no need to build a web API anymore. We can still implement such an API if it is actually required (for example, we intend to open our application to third-party developers through a REST API), but for our own needs, we greatly benefit from doing without it. Without the burden of building a web API, we can dramatically reduce code scattering, duplication of knowledge, and boilerplate. We can build faster, and better. RealWorld Example Is this approach working? I think it does. I built a with Liaison, both the frontend and the backend, and the looks quite amazing to me: straightforward implementation, high code cohesion, 100% DRY, and zero boilerplate. RealWorld example outcome In terms of the amount of code, in case it matters, my implementation is significantly lighter than any other one I have examined: The numbers represent the amount of lines of code excluding comments and test suites (count done on October 7th, 2019 using .) Tokei is still at an early stage, and a lot of work remains so it can be used in production. I truly believe it is something worth trying, and I am actively working on it. I expect to release the first beta version in early 2020. Liaison

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Do We Really Need A Web API: Simplifying Communication Between Layers

The world's best marketer isn't Mark Zuckerberg or Neil Patel, it's President Trump. With his marketing strategies, he became the most powerful person in the world. Here are 5 things we can learn from the world's top marketer: 1. Consistency is King Not a day goes by where you don't hear, see, or read " in one form or another. Whether it's in an article, a tweet, an ad, or you see the famous red hat, this emotional message is consistently hammered into billions of people (worldwide). Make America Great Again" 2. Pump Out Huge Loads of Content Trump has since winning the election. One of the biggest excuses entrepreneurs have for not pumping out huge amounts of content is saying: tweeted over 11,000 times "But I don't have any time." If the President of the United States, who also acts as head of state and Commander-in-Chief of the armed forces, has time to tweet 11,000 times in three short years, then you have time to put out some content. 3. Be Emotional The biggest mistake an entrepreneur can make is thinking that people are rational or logical, because then you'll try to sell the facts and figures about your product. In reality, people are highly emotional, and you have to tap into that to be a successful marketer. In fact, more than against someone or something. Now, I'm not saying you should attack people, but you should be emotional. half of Trump's tweets are some form of emotional attack 4. Steal Attention Running up to the 2016 presidential election, it was a competition to get the most views, the most clicks, and the most attention to your presidential bid. Trump was far-and-away the best candidate at stealing attention. Just take a look at this message he shared in a speech: "When Mexico sends its people, they're not sending their best. They're sending people that have a lot of problems, and they're bringing those problems with us. They're bringing drugs. They're bringing crime. They're rapists. And some, I assume, are good people." All the focus was removed from his competitors and placed squarely onto him. 5. Know Your Market Trump knows America and he knows his voters. In the same way, you need to deeply understand your target market. What content style, tone, words, length, and frequency is right for your market? Short, emotional messages appealing to things like employment match Trump's target audience. Conclusion In a one-sentence summary, you should consistently be putting out large volumes of emotionally-charged messages, tailored to your market.

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