Announcing TypeScript 4.0 - TypeScript
Today we are thrilled to announce the availability of TypeScript 4.0! This version of the language represents our next generation of TypeScript releases, as we dive deeper into expressivity, productivity, and scalability. If you’re not familiar with TypeScript, it’s a language that builds on top of JavaScript by adding syntax for static types. The idea is that by writing down the types of your val
GitHub - airbnb/ts-migrate: A tool to help migrate JavaScript code quickly and conveniently to TypeScript
ts-migrate is a tool for helping migrate code to TypeScript. It takes a JavaScript, or a partial TypeScript, project in and gives a compiling TypeScript project out. ts-migrate is intended to accelerate the TypeScript migration process. The resulting code will pass the build, but a followup is required to improve type safety. There will be lots of // @ts-expect-error, and any that will need to be
GitHub - JSMonk/hegel: An advanced static type checker
Unfortunately, the project is closed and will not be developed anymore. The reasons are described here. Getting Started | Documentation | Gitter Chat Hegel is a type checker for JavaScript with optional type annotations and preventing runtime type errors. No Runtime Type Errors. Hegel has a strong type system and soundness checks. This means that he finds any TypeError that may be thrown in runtim
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
Snowpack vs. webpack: A build tool comparison - LogRocket Blog
LogRocket’s Galileo AI watches every session, surfacing impactful user struggle and key behavior patterns. Editor’s note: This post was updated on 14 March 2022 to include information relevant to Snowpack v3 and webpack v5. Few tools have been as central and important to the JavaScript ecosystem as webpack. Launched in 2012, the JavaScript module bundler has been a cornerstone of modern JavaScript
Announcing TypeScript 3.8 - TypeScript
Today we’re proud to release TypeScript 3.8! For those unfamiliar with TypeScript, it’s a language that adds syntax for types on top of JavaScript which can be analyzed through a process called static type-checking. This type-checking can tell us about errors like typos and values that are potentially null and undefined before we even run our code. More than just that, that same type analysis can
Build your own React
We are going to rewrite React from scratch. Step by step. Following the architecture from the real React code but without all the optimizations and non-essential features. If you’ve read any of my previous “build your own React” posts, the difference is that this post is based on React 16.8, so we can now use hooks and drop all the code related to classes. You can find the history with the old blo
Modern Script Loading - JASON Format
Serving the right code to the right browsers can be tricky. Here are some options. Serving modern code to modern browsers can be great for performance. Your JavaScript bundles can contain more compact or optimized modern syntax, while still supporting older browsers. The tooling ecosystem has consolidated on using the module/nomodule pattern for declaratively loading modern VS legacy code, which p
IntelliCode for C# in Visual Studio Code
Version 1.90 is now available! Read about the new features and fixes from May. IntelliCode for C# Dev Kit For users of the C# Dev Kit extension in Visual Studio Code, the IntelliCode for C# Dev Kit extension is available to provide IntelliCode support. Predictions of up to a whole-line of code, along with ranking methods and properties in the IntelliSense list are available for C# Dev Kit users. W
VS Codeを使いこなせ! フロントエンジニア必須の拡張機能7選 - ICS MEDIA
「Visual Studio Code（略称：VS Code）」はMicrosoftが提供している無償で高機能なエディターです。標準でも十分な機能は備わっていますが、拡張機能をインストールすることで、より使いやすく自分にあったエディターへとカスタマイズできます。 本記事では、HTMLコーダーやフロントエンドエンジニアに役立つ拡張機能を紹介します。 1. IntelliCode IntelliCodeはMicrosoft謹製の公式プラグイン。AI支援による次世代のコード補完がJavaScriptやTypeScriptで利用できるようになります。APIの一覧がアルファベット順に提示されるのではなく、利用する可能性の高いAPIがAIによって予測されます。 コード補完の様子を次のスクリーションショットでご覧ください。入力候補の「★」マークが付いているところが、補完候補になっているところです。人工知
The perfect unit test - Jack Franklin
April 12, 2019The perfect unit testThere's a common theme I find with people who tell me that they don't find unit testing useful, and it's normally that they are writing bad tests. This is completely understandable, particularly if you're newer to unit testing. It's hard to write good tests and it takes practice to get there. All the things we're going to talk about today were learned the hard wa
glean - Visual Studio Marketplace
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter. VSCode Glean The extension provides refactoring tools for your React codebase The extension provides refactoring tools for your React codebase: extract JSX into a new component, convert Class Components to Functional Components, wrapping with Hooks and more! Highlights Allows extracting JSX into new component Allows
WebAssembly on Cloudflare Workers
We just announced ten major new products and initiatives over Crypto Week and Birthday Week, but our work is never finished. We're continuously upgrading our existing products with new functionality. Today, we're extending Cloudflare Workers with support for WebAssembly. All Workers customers can now augment their applications with WASM at no additional cost. What is WebAssembly? WebAssembly -- of
Gio.js
Create a 3D global data visualization model with your own data in just four lines of javascript code
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GitHub - bradtraversy/vanillawebprojects: Mini projects built with HTML5, CSS & JavaScript. No frameworks or libraries
GitHub - dprint/dprint: Pluggable and configurable code formatting platform written in Rust.
GitHub - echamudi/opencv-wasm: Precompiled OpenCV 4.3.0 to JavaScript + WebAssembly for node and deno. 🦕
GitHub - Hopding/pdf-lib: Create and modify PDF documents in any JavaScript environment
GitHub - myliang/x-spreadsheet: The project has been migrated to @wolf-table/table https://github.com/wolf-table/table
MrRio/jsPDF: Client-side JavaScript PDF generation for everyone.
