Brand checking of React Elements.

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

Implementation of Function.prototype.bind

Promise based HTTP client for the browser and node.js

Robustly `.call.bind()` a function

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

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

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

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

ES6 spec-compliant RegExp.prototype.flags shim.

Standard library

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Object.prototype.hasOwnProperty.call shortcut

Cooperative scheduler for the browser environment.

Runtime type checking for React props and similar objects.

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

React is a JavaScript library for building user interfaces.

node's assert.deepEqual algorithm

ES2015-compliant shim for Object.is - differentiates between -0 and +0

Copies non-react specific statics from a child component to a parent component

Bare bones Promises/A+ implementation

A simple utility for conditionally joining classNames together

implementation of crypto for the browser

Configuration and scripts for Create React App.

turf helpers module

A tiny and fast selection algorithm in JavaScript.

The smallest and simplest JavaScript priority queue

High-performance 2D spatial index for rectangles (based on R*-tree with bulk loading and bulk insertion algorithms)

scroll dom node into view automatically

Accessible, extensible, Autocomplete for React.js