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

JSON for Humans

Returns an array of Typed Array names that are available in the current environment

Utilities for working with TypeScript + ESLint together

string representations of objects in node and the browser

Store information about any JS value in a side channel, using a linked list

Robustly `.call.bind()` a function

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

A parser that converts TypeScript source code into an ESTree compatible form

Cross platform child_process#spawn and child_process#spawnSync

A utility-first CSS framework for rapidly building custom user interfaces.

ESLint JavaScript language implementation

Share target browsers between different front-end tools, like Autoprefixer, Stylelint and babel-env-preset

`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.

Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.

If available, the `Object.prototype.__proto__` accessor and mutator, call-bound

A super light and fast circular JSON parser.

Store information about any JS value in a side channel. Uses WeakMap if available.

Determine if a function is a native generator function.

webpack Validation Utils