Will Bun JavaScript Take Node's Crown
Huge thanks to Jarred Sumner for reviewing this post. It wouldn’t have been possible without his help. Bun is a new and ambitious JavaScript toolset and runtime. Early adopters have been reporting that Bun JavaScript is incredibly fast. So fast that it has been touted by some as a Node.js killer. Curious, I decided to check out Bun for myself and benchmark it against the competition. Is it as fast
Replit — Ace, CodeMirror, and Monaco: A Comparison of the Code Editors You Use in the Browser
EngInfraAce, CodeMirror, and Monaco: A Comparison of the Code Editors You Use in the Browser I’ve been working on Replit for roughly six years now, and as the team has grown, I’ve focused on the IDE (what we call the workspace) portion of the product. Naturally, I was increasingly preoccupied with the code editor. While we’ve considered creating a code editor that meets our needs, the complexity i
Announcing Parcel CSS: A new CSS parser, compiler, and minifier written in Rust!
I'm very excited to announce @parcel/css, a new CSS parser, compiler, and minifier written in Rust! Check it out on GitHub, or try a live demo right in your browser. Parcel CSS has significantly better performance than existing tools, while also improving minification quality. In addition to minification, Parcel CSS handles compiling CSS modules, tree shaking, automatically adding and removing ven
HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks | Microsoft Security Blog
HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans (RATs), and other payloads related to targeted attacks. Notably, this technique was observed in a spear-phishing campaign from the threat actor NOBELIUM in May. More recently, we have also see
Hello, Modules!
It has already been available for some time in modern browsers, but we can now finally use it in Node.js, thanks to Node.js 10 becoming obsolete. As I wrote about earlier this year, I have personally been waiting for this day for 10 years. Here’s a good overview of JavaScript Modules. What are the benefits of JavaScript Modules over CommonJS?Unified syntax. Helps with teaching.Browser compatibilit
Node.js 16 available now
This blog was written by Bethany Griggs, with additional contributions from the Node.js Technical Steering Committee. We are excited to announce the release of Node.js 16 today! Highlights include the update of the V8 JavaScript engine to 9.0, prebuilt Apple Silicon binaries, and additional stable APIs. You can download the latest release from https://nodejs.org/en/download/current/, or use Node V
React-pdf - Announcing react-pdf v2.0
I'm very excited to announce react-pdf 2.0 to the world! This is the culmination of almost an entire year of work and all the lessons learned since this project started all the way back in October 2016. It's crazy, I feel it was just yesterday when I was announcing 1.0 as well. In essence, this new 2.0 version is a full reimplementation of the library. Starting from scratch is always a risky move,
Cloudflare Pages is now Generally Available
In December, we announced the beta of Cloudflare Pages: a fast, secure, and free way for frontend developers to build, host, and collaborate on Jamstack sites. It’s been incredible to see what happens when you put a powerful tool in developers’ hands. In just a few months of beta, thousands of developers have deployed over ten thousand projects, reaching millions of people around the world. Today,
JavaScript performance beyond bundle size
23 Feb JavaScript performance beyond bundle size Posted February 23, 2021 by Nolan Lawson in performance, Web. 8 Comments There’s an old story about a drunk trying to find his keys in the streetlight. Why? Well, because that’s where it’s the brightest. It’s a funny story, but also relatable, because as humans we all tend to take the path of least resistance. I think we have the same problem in the
Google TypeScript Style Guide
// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
`undefined` vs. `null` revisited
Many programming languages have one “non-value” called null. It indicates that a variable does not currently point to an object – for example, when it hasn’t been initialized yet. In contrast, JavaScript has two such non-values: undefined and null. In this blog post, we examine how they differ and how to best use or avoid them. undefined vs. null # Both values are very similar and often used inte
React Native for Windows + macOS · Build native Windows & macOS apps with Javascript and React
Extend your desktop experience to more than just Windows! Try out our fully supported macOS extension to React Native. React Native for Windows + macOS brings React Native support for the Windows SDK as well as the macOS 10.14 SDK. With this, you can use JavaScript to build native Windows apps for all devices supported by Windows 10 and higher including PCs, tablets, 2-in-1s, Xbox, Mixed reality d
tsconfig.jsonはJSONじゃないと言う話 - 焼売飯店
気になったので調べてみました。 tsconfig.jsonと普通のJSONの大きな違い tsconfig.jsonには、コメントが書けます。 tsc --init した時に生成されるtsconfig.jsonに、大量にコメントが付けられているので、すぐに気付くことと思います。 例) { "compilerOptions": { "target": "es5" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */, "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd
What's coming in ESLint v7.0.0 - ESLint - Pluggable JavaScript Linter
ESLint v8.x reached end-of-life on 2024-10-05 and is no longer maintained. Upgrade or consider long-term support options Published 20 Feb, 2020 under API Changes What's coming in ESLint v7.0.0 We want to share with you the significant changes that will be coming in v7.0.0 so you can better prepare for the changes and understand why the changes are necessary. Last week, the Technical Steering Commi
The story of a V8 performance cliff in React · V8
Show navigation Previously, we discussed how JavaScript engines optimize object and array access through the use of Shapes and Inline Caches, and we’ve explored how engines speed up prototype property access in particular. This article describes how V8 chooses optimal in-memory representations for various JavaScript values, and how that impacts the shape machinery — all of which helps explain a re
YARN vs NPM (vs pnpm) in 2019: comparison and verdict
YARN vs NPM (vs pnpm) in 2019: comparison and verdict A comparative analysis of the most used package managers for JavaScript and Node.js and what to use in 2019 In this article I'll talk about Yarn and NPM, arguably the most popular JavaScript package managers available as of today, with the precise intent of compare their respective features and explain what I'm (mostly) using nowadays and why:
HTML5でゲーム開発。JavaScriptゲームフレームワークまとめ | BACKEND AS A SERVICE mbaas BLOG
ゲームと言えばネイティブアプリなイメージがありますが、HTML5やJavaScriptエンジンが高性能化するのに伴ってWebブラウザでも十分ゲームが遊べるようになっています。Webブラウザであればインストールの手間なく遊べて、さらにラップすることでアプリ化することだって可能です。ゲームエンジンは多数存在しますが、今回は特に2Dをサポートしたソフトウェアを紹介します。mBaaSお役立ちブログ トップ> ブログ> Tips> HTML5でゲーム開発。JavaScriptゲームフレームワークまとめ ゲームと言えばネイティブアプリなイメージがありますが、HTML5やJavaScriptエンジンが高性能化するのに伴ってWebブラウザでも十分ゲームが遊べるようになっています。Webブラウザであればインストールの手間なく遊べて、さらにラップすることでアプリ化することだって可能です。 ゲームエンジンは多数
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JavaScriptがちょっとわかる人向けの、Ajaxの話。 - Qiita