48 open source projects by mathiasbynens

A source code transpiler that enables the use of ES2015 Unicode regular expressions in ES5.

A small script that enables you to make typos in JavaScript property names. Powered by ES2015 proxies + Levenshtein string distance.

🙊 Subtle and not-so-subtle shell tweaks that will slowly drive people insane.

A robust & optimized ES3-compatible polyfill for the `String.prototype.startsWith` method in ECMAScript 6.

A Lua minifier written in JavaScript

This Grunt plugin interpolates template files with any data you provide and saves the result to another file.

Page Visibility shim for jQuery

World’s first <details>/<summary> polyfill™

A polyfill for document.scrollingElement as defined in the CSSOM specification.

Smallest possible syntactically valid files of different types

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

A Grunt plugin for compressing files using Zopfli.

Smooth anchor scrolling plugin for jQuery.

A robust & character encoding–agnostic JavaScript implementation of the `Quoted-Printable` content transfer encoding as defined by RFC 2045.

A regular expression to match all Emoji-only symbols as per the Unicode Standard.

A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.

The simplest jQuery slideshow plugin. Evar.

A Grunt plugin for compressing JavaScript and CSS files using YUI Compressor.

Python scripts that generate JavaScript-compatible Unicode data

Emoji data extracted from Unicode Technical Report #51.

A robust JavaScript implementation of the windows-1252 character encoding as defined by the Encoding Standard.

Create regular expression patterns based on a list of strings to be matched.

JavaScript-compatible Unicode data. Arrays of code points, arrays of symbols, and regular expressions for Unicode v9.0.0’s categories, scripts, blocks, bidi, and other properties.

Web developer tools

A robust & optimized ES3-compatible polyfill for the `String.prototype.repeat` method in ECMAScript 6.

A Unicode-aware string reverser written in JavaScript.

🔧 .files, including ~/.macos — sensible hacker defaults for macOS

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

jsPerf.com source code

A robust JavaScript implementation of a UTF-8 encoder/decoder, as defined by the Encoding Standard.

A jQuery plugin that enables HTML5 placeholder behavior for browsers that aren’t trying hard enough yet

A robust base64 encoder/decoder that is fully compatible with `atob()` and btoa()`, written in JavaScript.

A robust polyfill for the CSS.escape utility method as defined in CSSOM.

Simple PHP URL shortener, as used on mths.be

Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.

A robust HTML entity encoder/decoder written in JavaScript.

A web component for mathematical typesetting using TeX notation.

My `oninput` polyfill as a jQuery plugin

An easy setter/getter for HTML5 data-* attributes

'🇩🇰🇲🇬'.replace('🇰🇲', '🇪🇨'); // → '🇩🇪🇨🇬'

A jQuery plugin which disables text selection on any element. Useful for UI elements; evil for pretty much everything else.

Perform simple rotational letter substitution (such as ROT-13) in JavaScript.

A collection of Regenerate sets for Unicode various properties.

Unicode version support across JavaScript features & engines

regexpu’s core functionality, i.e. `rewritePattern(pattern, flag, options)`, which enables rewriting regular expressions that make use of the ES6 `u` flag into equivalent ES5-compatible regular expression patterns.

Homebrew formulae for ECMAScript engines

Quick demonstration of why `<a rel=noopener>` is needed.

A robust Punycode converter that fully complies to RFC 3492 and RFC 5891.