array-includes

An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.

string.prototype.includes

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

@nevware21/ts-utils

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

@ndhoule/includes

Determine whether or not a value is contained by a given collection.