Learn JavaScript Promises by Building a Fully-Working Promise from Scratch

added by JavaScript Kicks
1/13/2020 9:06:17 AM


Build your own Promise.then().catch() implementation to understand promises and handling async code in JavaScript In this tutorial, you will learn JavaScript promises by building a JavaScript promise implementation from scratch. Your promise will be declared exactly like they are in native JavaScript new Promise(...), and it will be able to chain .then() and .catch() statements to handle the result of async code.