Update (April 20, 2022): Snowpack is no longer actively maintained and is not recommended for new projects.

Check out Vite for a well-maintained Snowpack alternative.
See also: esbuild, parcel

Snowpack is a lightning-fast frontend build tool, designed to leverage JavaScript's native module system (known as ESM). It is an alternative to heavier, more complex bundlers like webpack or Parcel in your development workflow.

• Develop faster, with a dev server that starts up in 50ms or less.
• See changes reflected instantly in the browser.
• Integrate your favorite bundler for a production-optimized build.
• Enjoy out-of-the-box support for TypeScript, JSX, CSS Modules and more.
• Connect your favorite tools with third-party plugins.

💁 More info at the official Snowpack website ➞

Contributor Guidelines: CONTRIBUTING.md
License: MIT

HTML5 Boilerplate is a professional front-end template for building fast, robust, and adaptable web apps or sites.

This project is the product of over 10 years of iterative development and community knowledge. It does not impose a specific development philosophy or framework, so you're free to architect your code in the way that you want.

• Homepage
• Source Code

This repository is where HTML5-Boilerplate is authored. Some of the tools files and processes that you see here are solely for the production of HTML5 Boilerplate and are not part of HTML5 Boilerplate. For one example, the gulpfile.mjs script is used to build the project. It's not part of the project itself.

The project we publish is represented by the contents of the /dist/ folder. Everything else in this repository is used to author the project.

Think of it this way, in the same way that you…

A mostly reasonable approach to JavaScript

Note: this guide assumes you are using Babel, and requires that you use babel-preset-airbnb or the equivalent. It also assumes you are installing shims/polyfills in your app, with airbnb-browser-shims or the equivalent.

This guide is available in other languages too. See Translation

Other Style Guides

• ES5 (Deprecated)
• React
• CSS-in-JavaScript
• CSS & Sass
• Ruby

1. Types
2. References
3. Objects
4. Arrays
5. Destructuring
6. Strings
7. Functions
8. Arrow Functions
9. Classes & Constructors
10. Modules
11. Iterators and Generators
12. Properties
13. Variables
14. Hoisting
15. Comparison Operators & Equality
16. Blocks
17. Control Statements
18. Comments
19. Whitespace
20. Commas
21. Semicolons
22. Type Casting & Coercion
23. Naming Conventions
24. Accessors
25. Events
26. jQuery
27. ECMAScript 5 Compatibility
28. ECMAScript 6+ (ES 2015+) Styles
29. Standard Library
30. Testing
31. Performance
32. Resources
33. In the Wild
34. Translation
35. The JavaScript Style Guide Guide
36. Chat With Us About JavaScript
37. Contributors
38. License
39. Amendments

• 1.1 Primitives: When you access a primitive type you work…

This is a book on the functional paradigm in general. We'll use the world's most popular functional programming language: JavaScript. Some may feel this is a poor choice as it's against the grain of the current culture which, at the moment, feels predominately imperative. However, I believe it is the best way to learn FP for several reasons:

• You likely use it every day at work.

  This makes it possible to practice and apply your acquired knowledge each day on real world programs rather than pet projects on nights and weekends in an esoteric FP language.

• We don't have to learn everything up front to start writing programs.

  In a pure functional language, you cannot log a variable or read a DOM node without using monads. Here we can cheat a little as we learn to purify our codebase. It's also easier to get started in this…

The repository for high quality TypeScript type definitions.

You can also read this README in Español, 한국어, Русский, 简体中文, Português, Italiano, 日本語 and Français!

Link to Admin manual

Definitely Typed has recently changed to a proper pnpm monorepo; you may want to reread this document for changes to the layout of packages in this repo.

At the very least, you may want to git clean -fdx the repo (or node ./scripts/clean-node-modules.js on Windows) to clean up node_modules and run pnpm install --filter . to install the workspace root. See further sections for more info on pnpm install.

This section tracks the health of the repository and publishing process. It may be helpful for contributors experiencing any issues with their PRs and packages.

• Most recent build type-checked/linted cleanly:
• All packages…

Ant Design

An enterprise-class UI design language and React UI library.

Changelog · Report Bug · Request Feature · English · 中文

❤️ Sponsors and Backers

• 🌈 Enterprise-class UI designed for web applications.
• 📦 A set of high-quality React components out of the box.
• 🛡 Written in TypeScript with predictable static types.
• ⚙️ Whole package of design resources and development tools.
• 🌍 Internationalization support for dozens of languages.
• 🎨 Powerful theme customization based on CSS-in-JS.

• Modern browsers
• Server-side Rendering
• Electron

Edge	Firefox	Chrome	Safari	Electron
Edge	last 2 versions	last 2 versions	last 2 versions	last 2 versions

npm install antd

yarn add antd

pnpm add antd

import { Button, DatePicker } from 'antd';
export default () => (
  <>
    <Button type="primary">PRESS ME</Button>
    <DatePicker placeholder="select

SWR is a React Hooks library for data fetching.

The name “SWR” is derived from stale-while-revalidate, a cache invalidation strategy popularized by HTTP RFC 5861 SWR first returns the data from cache (stale), then sends the request (revalidate), and finally comes with the up-to-date data again.

With just one hook, you can significantly simplify the data fetching logic in your project. And it also covered in all aspects of speed, correctness, and stability to help you build better experiences:

• Fast, lightweight and reusable data fetching
• Transport and protocol agnostic
• Built-in cache and request deduplication
• Real-time experience
• Revalidation on focus
• Revalidation on network recovery
• Polling
• Pagination and scroll position recovery
• SSR and SSG
• Local mutation (Optimistic UI)
• Built-in smart error retry
• TypeScript
• React Suspense
• React Native

...and a lot more.

With SWR, components will get a stream of data updates constantly and automatically. Thus…

Website • API Docs • Features Tutorial • Playground • Discord

Solid is a declarative JavaScript library for creating user interfaces. Instead of using a Virtual DOM, it compiles its templates to real DOM nodes and updates them with fine-grained reactions. Declare your state and use it throughout your app, and when a piece of state changes, only the code that depends on it will rerun.

import { createSignal } from "solid-js";
import { render } from "solid-js/web";
function Counter() {
  const [count, setCount] = createSignal(0);
  const doubleCount = () => count() * 2;
  
  console.log("The body of the function runs once...");

  return (
    <>
      <button onClick={() => setCount(c => c + 1)}>
        {doubleCount(

Read this booklet here.

This booklet was my initial attempt to write about machine learning systems design back in 2019. My understanding of the topic has gone through significant iterations since then. My book Designing Machine Learning Systems (O'Reilly, June 2022) is much more comprehensive and up-to-date. The new book's repo contains the full table of contents, chapter summaries, and random thoughts on MLOps tooling.

This booklet covers four main steps of designing a machine learning system:

1. Project setup
2. Data pipeline
3. Modeling: selecting, training, and debugging
4. Serving: testing, deploying, and maintaining

It comes with links to practical resources that explain each aspect in more details. It also suggests case studies written by machine learning engineers at major tech companies who have deployed machine learning systems to solve real-world problems.

At the end, the booklet contains 27 open-ended machine learning systems design questions that might come…

Send ephemeral messages, track and synchronize shared state, and listen to Postgres changes all over WebSockets
Multiplayer Demo · Request Feature · Report Bug

This repository focuses on version 2 but you can still access the previous version's code and Docker image. For the latest Docker images go to https://hub.docker.com/r/supabase/realtime.

The codebase is under heavy development and the documentation is constantly evolving. Give it a try and let us know what you think by creating an issue. Watch releases of this repo to get notified of updates. And give us a star if you like it!

This is a server built with Elixir using the Phoenix Framework that enables the following functionality:

• Broadcast: Send ephemeral messages from client to clients with low latency.
• Presence: Track and…