JavaScript Pure Functions - Tutorial for beginners

YouTube Excerpt: The JavaScript Tool I'm using to demonstrate: https://runjs.app/ColorCode ColorCode Etsy Merchandise store: https://www.etsy.com/shop/ColorCodeStore Pure Functions are an essential ingredient of functional programming, regardless of the language. In this video we cover the two major rules that make any function pure, benefits of pure function, as well as why some functions can't be pure. Let's have some fun yo! This is episode 16 of 20 things Javascript Developers Should Know But Probably Don't. 00:00:00 Intro 00:01:15 What is a pure function? 00:01:52 Rule #1: Same input means same output 00:02:58 🔴 Live coding: Rule #1 00:08:37 Benefits of Rule #1 00:10:04 Testability 00:12:05 Rule #2: No side-effects 00:12:22 🔴 Live coding: Rule #2 00:15:07 Benefits of Rule #2 00:16:40 Impure functions 😱 00:18:17 Outro ColorCode Etsy Merchandise store: https://www.etsy.com/shop/ColorCodeStore Full playlist here: https://www.youtube.com/playlist?list=PL1PqvM2UQiMoGNTaxFMSK2cih633lpFKP JavaScript Promises from the series "20 Things JS Developers Should Know but Probably Don't" by ColorCode.io, Sina Jazayeri *** Announcement *** Full JavaScript Mastery course is coming! Sign up for Early Access here: https://www.colorcode.io/js-mastery

The JavaScript Tool I'm using to demonstrate: https://runjs.app/ColorCode ColorCode Etsy Merchandise...

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