An ES7/ES2016 spec-compliant Array.prototype.includes
shim/polyfill/replacement that works as far down as ES3.
A robust & optimized String.prototype.includes
polyfill, based on the ECMAScript 6 specification.
Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r