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.

Object.prototype.hasOwnProperty.call shortcut

Implementation of Function.prototype.bind

Determine if an object is a Buffer

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.

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

A library for deep (recursive) merging of Javascript objects

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

Is this an arguments object? It's a harder question than you think.

ECMAScript extensions and shims

js function for hashing messages with MD5

utilities for encryption and hashing

character encoding utilities

Throttle and debounce functions.

The progressive JavaScript framework for building modern web UI.

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

deep copy data

Polyfill for ES6 Promise

A library to edit lottie-web animations dynamically