Fancy duck typing for the most serious of ducks.
Multi-type protocol-based polymorphism
The function of Promise is implemented by handwriting, and the goal is to be completely consistent with the function of native Promise.
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
React is a JavaScript library for building user interfaces.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
Babel compiler core.