How To Create Your Own Implementation Of JavaScript Promises

JavaScript Simplified Course: https://javascriptsimplified.com

One of the most common types of interview questions is to recreate a common feature in JavaScript. This may be as simple as recreating some higher order array methods or as complex as creating an entire promise library from scratch. In this video I will be showing you how to recreate the entire JavaScript promise API which is the hardest version of this type of interview question you could get asked.

📚 Materials/References:

GitHub Code: https://github.com/WebDevSimplified/js-promise-library
JavaScript Simplified Course: https://javascriptsimplified.com
JavaScript Promise Video: https://youtu.be/DHvZLI7Db8E
JavaScript Promise Article: https://blog.webdevsimplified.com/2021-09/javascript-promises

🌎 Find Me Here:

My Blog: https://blog.webdevsimplified.com
My Courses: https://courses.webdevsimplified.com
Patreon: https://www.patreon.com/WebDevSimplified
Twitter: https://twitter.com/DevSimplified
Discord: https://discord.gg/7StTjnR
GitHub: https://github.com/WebDevSimplified
CodePen: https://codepen.io/WebDevSimplified

⏱️ Timestamps:

00:00 – Introduction
00:40 – Downloadable Test File
01:23 – Class Setup
03:55 – then
11:45 – catch
13:18 – Chaining
21:08 – finally
22:52 – Uncaught Promise Exception
25:00 – resolve and reject
25:50 – all
28:36 – allSettled
30:39 – race
31:33 – any

#JSPromise #WDS #JavaScript