Work with IANA language tags.

Iterator abstraction based on ES6 specification

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

Array.prototype.findIndex ES2015 polyfill.

String validation and sanitization

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

Damerau - Levenshtein distance by The Spanish Inquisition + relative distance

A lightweight promise library

ES2019 spec-compliant String.prototype.trimStart shim.

Polyfill for ES6 Promise

Babel helper functions for implementing ES6 module transformations

Yet another Base64 transcoder in pure-JS

ECMAScript extensions and shims

Native Promise Only: A polyfill for native ES6 Promises **only**, nothing else.

Plugin for transforming ES2015 javascript code to to ES5 syntax.

Tool to turn functions with Node-style callback APIs into functions that return Promises

ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim

Scan modules for global variables and injects `import` statements where necessary

ES6 spec-compliant RegExp.prototype.flags shim.

Array methods for ES6 Iterators