Implementation of Function.prototype.bind

Get and robustly cache all JS language-level intrinsics at first require time

Determine if the JS environment has Symbol support. Supports spec, or shams.

Robustly `.call.bind()` a function

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

ECMAScript spec abstract operations.

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

Object.prototype.hasOwnProperty.call shortcut

A simple, lightweight JavaScript API for handling cookies

ES Proposal spec-compliant shim for Promise.prototype.finally

Smooth Scroll behavior polyfill