JavaScript Loops

JavaScript provides many ways to iterate through loops. This tutorial explains the various loop possibilities in modern JavaScript!

Table of Contents:
00:00 - Introduction
00:50 - for
07:23 - while
14:31 - do...while
18:09 - forEach
24:01 - for...of
28:18 - for...in
32:40 - Speed Comparison

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[Robb]

You are a very good teacher. Slow and clear. Can't stand these showoff YouTuber's racing through explanations like they are talking to a bunch of seasoned programmers. Well done and keep it up!!

[robertholtz]

Very nice precise and informative instruction.

[Loche]

The most complete and informative tutorial on Loops. Thank you!

[Akira-ujun]

you have so much talent teaching! thank you!

[yogadiary]

Very good teaching, slowly and well explained. Thank you so much!

[thejudethatneverwas]

Thank you very much, it was a big help

[kasperkat]

Thank you for this amazing professional presentation. It is the best and exactly what I need.

[backda]

It seems to have studied this material, but still learned new cases for myself after watching this video. Thank you for your efforts.

[istayprivate]

Well Explained ! Thank you for your hardwork!

[siriusplayz]

Wow man what a video bro, jam packed with knowledge.
This video was epic, very informative. This is the first time I thoroughly understood about all the loops in JavaScript. This definitely helped in my understanding of the JavaScript loops.
Thanks so much.
Very much appreciated. I will definitely be coming back for more javascript and other related content. Respect!

[whenlifegivesyouLSD]

very comprehensive, keep the amazing work :D

[robertholtz]

I’ve often been told that for...of loops are slower than for loops but, when processing an array of all elements starting with the first element and ending with the last, I have always preferred the clean syntax of for...of. I never bothered to actually speed test each loop type. In fact, by casual observation, I never saw any discernible difference. I even contemplated the possibility that the assertion that for...of loops were slower might be a made up notion or that the difference is so negligible that the distinction was purely academic. Your speed tests here are truly eye opening for me. So much so that I am compelled to revisit some existing code already in production for a long time now in order to improve performance. This also affirms my theory that less code is not necessarily optimal code. A great developer considers runtime execution as a key factor to inform their design decisions. Thank you. I’m an instant fan of your excellent work. Subscribed!

[JD-kfki]

Why my "OUTPUT" terminal doesn't log?

[MrDLC]

for(const [index, elem] of myArray.entries()) {

If I were to omit the method, being .entries(), from this line, would the for...of loop still run properly?