Articles and tutorials

High performance and safe AI as a Service in Node.js

Today’s dominant programming language for AI is Python. Yet, the programming language for the web is JavaScript. To provide AI capabilities as a service on the web, we need to wrap AI algorithms in JavaScript, particularly Node.js. However, neither Python nor JavaScript by itself is suitable for computationally intensive AI applications. They are high-level, ie, slow, languages with heavy-weight runtimes. Their ease-of-use comes at the cost of low performance. Python got around this by wrapping AI computation in native C/C++ modules.…

Deploying Uniswap on the Oasis Ethereum ParaTime

The Oasis Ethereum ParaTime is a high-performance and privacy-first Ethereum runtime on the Oasis network. It supports both the classic EVM (Ethereum Virtual Machine) and the future Ewasm (Ethereum flavored WebAssembly). All Ethereum smart contracts and decentralized applications should be able to migrate and run on the Oasis network, and enjoy enhanced performance and privacy, without any modification. The “litimus test” for such migration is the Uniswap DEX. Uniswap is one of the most widely used and most advanced decentralized applications on the Ethereum network.…

👏 Get a Free Raspberry Pi Kit- Wave 2

No purchase necessary. Learning and coding are mandatory! Offer ends on September 30th 2020. Learn to create a high performance Node.js application. In the process, you will learn how to write simple functions in the Rust programming language. Share your source code and learning experience to the community via social media. We will send you a FREE Raspberry Pi kit ($25). You can use it as a personal dev server.…

Enable AJAX access for Tencent Serverless Cloud Functions

An important use case of serverless functions is to act as endpoints for AJAX calls from HTML web pages. This way, we can build truly “serverless” web applications with static HTML + JS pages on the front end, and serverless functions on the backend. A good example is this web page for fitting and plotting eigenvectors, a common machine learning task, on a 2-D data set. The web page calls a WebAssembly-based Tencent Serverless Cloud Function via AJAX.…

Reload Deno cache after upgrading

Since it's v1.0 release, the Deno framework is iterating in a very fast pace. It releases a new version almost every other week. It is generally a good idea to keep your Deno install updated with the latest release. The deno command provides a built-in upgrading tool. The following command upgrades Deno to the latest release. $ deno upgrade You can also upgrade or downgrade to a specific version of Deno, like this:…

🧐 How to install Ubuntu 20.04 on a Raspberry Pi Zero?

To use the Raspberry Pi as a personal dev server, you should install Ubuntu Server 20.04 TLS. With Ubuntu, you can use the latest Node.js and WebAssembly services on the device. But can I use Ubuntu Server 20.04 on the smallest Raspberry Pi Zero? The NOOBS SD card you purchased from most online stores probably only has the 64-bit version of Ubuntu pre-installed. It would not boot on the 32-bit Raspberry Pi Zero (W).…

🦕 Tutorial: Deno Apps with WebAssembly, Rust, and WASI

Deno is created by the original developer of Node.js, Ryan Dahl, to address what he called 10 things I regret about Node.js. It did away with the NPM and the infamous node_modules. Deno is a single binary executable to run applications written in TypeScript and JavaScript. However, while TypeScript and JavaScript are suitable for the majority of web applications, they could be inadequate for computationally intensive tasks, such as neural network training and inference, machine learning, and cryptography.…

Upgrade Ubuntu for SSVM

The SSVM is cutting edge software designed for performance and stability. It utilizes the latest stable release of major open source libraries. We recommend running it on Ubuntu 20.04 LTS at this time, but you can make your OS work by meeting library requirements. Here is how. Upgrade libstdc++ The SSVM requires the latest version of libstdc++ to access operating system resources. If you are already on Ubuntu 20.04, you are all set.…

Is This the Next JAVA

In the post-Moore era, computer performance must come from more efficient software. Rust and WebAssembly provide Java-like memory safety, security, and portability to server-side applications while delivering high performance. Play with Rust functions in Node.js, and get recognized for your learning! Back in 2005, I had the honor of being voted as one of the very first Java Champions for evangelizing Java on the server-side. It is hard to believe now, but back then, most people are doubtful that Java could even be used in server-side applications.…

👏 Get a Free Raspberry Pi Kit

No purchase necessary. Learning and coding are mandatory! Offer ends on Aug 31st, 2020. Learn to create a high performance Node.js application. In the process, you will learn how to write simple functions in the Rust programming language. Share your source code and learning experience to the community via social media. We will send you a FREE Raspberry Pi kit ($25). You can use it as a personal dev server.…