mathiasbynens

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

A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.

A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.

A robust & optimized `String.prototype.endsWith` polyfill, based on the ECMAScript 6 specification.

A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.

A robust & optimized `String.prototype.repeat` polyfill, based on the ECMAScript 6 specification.

A robust & optimized `String.prototype.startsWith` polyfill, based on the ECMAScript 6 specification.

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

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

A `document.scrollingElement` polyfill.

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

_emoji-test-regex-pattern_ offers Java- and JavaScript-compatible regular expression patterns to match all emoji symbols and sequences listed in the `emoji-test.txt` file provided as part of [Unicode® Technical Standard #51](https://www.unicode.org/report

A regular expression to match hashtag identifiers as per the Unicode Standard.

A robust HTML entities encoder/decoder with full Unicode support.

A robust ibm866 encoder/decoder written in JavaScript.

Check whether a given string matches the `PotentialCustomElementName` production as defined in the HTML Standard.

A robust iso-8859-10 encoder/decoder written in JavaScript.

A robust iso-8859-13 encoder/decoder written in JavaScript.

A robust iso-8859-14 encoder/decoder written in JavaScript.

A robust iso-8859-15 encoder/decoder written in JavaScript.

A robust iso-8859-2 encoder/decoder written in JavaScript.

A robust iso-8859-3 encoder/decoder written in JavaScript.

A robust iso-8859-4 encoder/decoder written in JavaScript.

A robust iso-8859-5 encoder/decoder written in JavaScript.

A robust iso-8859-6 encoder/decoder written in JavaScript.

A robust iso-8859-7 encoder/decoder written in JavaScript.

A robust iso-8859-8-i encoder/decoder written in JavaScript.

A robust iso-8859-8 encoder/decoder written in JavaScript.

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

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

A robust koi8-r encoder/decoder written in JavaScript.

A robust macintosh encoder/decoder written in JavaScript.

A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.

A robust & character encoding–agnostic JavaScript implementation of the `Q` encoding as defined by RFC 2047.

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

Regenerate sets for Unicode properties and values.

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

regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

Test cases for the regexpu project. Possibly useful for other regular expression-related test suites.

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

Easily remove Unicode combining marks from strings.

The set of canonical Unicode property names supported in ECMAScript RegExp property escapes.

The set of Unicode symbols that can serve as a base for emoji modifiers, i.e. those with the `Emoji_Modifier_Base` property set to `Yes`.

Match a Unicode property or property alias to its canonical property name per the algorithm used for RegExp Unicode property escapes in ECMAScript.

Match a Unicode property or property alias to its canonical property name per the algorithm used for RegExp Unicode property escapes in ECMAScript.

Unicode property alias mappings in JavaScript format for property names that are supported in ECMAScript RegExp property escapes.

A well-tested UTF-8 encoder/decoder written in JavaScript.

A robust windows-1250 encoder/decoder written in JavaScript.

A robust windows-1251 encoder/decoder written in JavaScript.

A robust windows-1252 encoder/decoder written in JavaScript.

A robust windows-1253 encoder/decoder written in JavaScript.

A robust windows-1254 encoder/decoder written in JavaScript.

A robust windows-1255 encoder/decoder written in JavaScript.

A robust windows-1256 encoder/decoder written in JavaScript.

A robust windows-1257 encoder/decoder written in JavaScript.

A robust windows-1258 encoder/decoder written in JavaScript.

A robust windows-874 encoder/decoder written in JavaScript.

A well-tested WTF-8 encoder/decoder written in JavaScript.

A robust x-mac-cyrillic encoder/decoder written in JavaScript.

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

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

A fully Unicode-aware string reverser written in JavaScript.