How To Use Iterators in JavaScript - Iterate Over Arrays and Collections

In this video I'll be showing you how to use and create iterators in JavaScript - you can use them to iterate over a collection or data structure.
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For your reference, check this out:
developer.mozilla.org/en/docs...
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#javascript #web #development

[@nikolajacques5982]

Not an easy topic. After struggling with it and making it out on the other side, it seems clear to me that a lot of thought was put into making this tutorial. Thanks!

[@jevforsberg4766]

Fascinating and educational. Thanks for this!

[@DanielZotti]

Nice and clean explanation!

[@hansschenker]

finally understood Iterator! Thank's a lot for publishing!

[@honeypot11]

the BEST video on this topic imo

[@gauravsrivastav9648]

Very good explanation mate

[@rashidsun]

Perfect explanation of not easy issue!

[@dcode-software]

Glad you liked it mate

[@ahora1026]

I'm first? Wow. Even though I know about iterators it's nice to listen!

[@bengbeng2005]

waw, your way of explaining things is very impressive, you make things easier, thank you. (by the way, are you from Africa because your accent sounds like one)

[@wagnerpedroo]

foi simples sua explicação, mas uma pergunta que tenho é: como posso usar o iterador na prática

[@mertarslan7269]

best video

[@kyleg6790]

Thanks for this. Can you explain what you mean when you say numbers[Symbol.iterator]() is the same as numbers["length"]()? Do you mean numbers[i]?

[@yokunjon]

Well, that means it is one of object properties, so you can access it as you access length.

[@jeanclaudecamara9505]

Nice❤

[@AleksandrStrizhevskiy]

I am getting an error: cannot read properties of undefined. I will just loop differently through the data structure but it is strange that in your video the system goes through the undefined value without a problem but I get an error.

[@guidoglielmi7992]

Is the iterator object a generator function?

[@jaisah510]

Your keyboard made more noise then you😅
Btw nice explanation.

[@dcode-software]

Lol thanks

[@totfosk]

just WOW

[@SMBLtheGamer]

I thought iterators were just the regular "for loops, apparently JavaScript finally has a for each loop like function.

[@keepitplainsimple1466]

You explained it really nice
But I didn't get it completely 😅

[@tamikuru7936]

I am SO confused about the last 2 minutes.
Why is it "new numberList()[Symbol.iterator]()" and not "new numberList().[Symbol.iterator]()"? (

[@Rebel8MAC]

"so, you might be quite impressed with how it works, but also a bit curious..."....
No, I'm curious about WHY it exists. It seems like extra complexity and typing for going through a for loop? Why would I even use this???

[@bidabida1399]

iterator explains how loop like for-each iterate over data structures

[@miggu]

Seemingly it's like inventing the wheel, however ..... consider it as the foundation of how iterable data composites work in javascript, it's how things work, not what you must necessarily use. Create an array in the console, check the prototype of that array, now : arr.__proto__[Symbol.iterator]() , yes return a function from that function, and inspect it. It exists because it's how it was conceived to work , would you ever use it? I doubt it.

[@sekemilo]

Exactly my concern but @miggu has given a satisfying answer

[@angelortega4]

Hi, excuse me, do you have any video where they teach
how to import a csv file and display the data in an html table?
to then be stored in a database.
In java.
Greetings.

[@OfficialOffsideBall]

use AJAX jquery

[@isi1044]

whats the point of an Iterators?

[@mahamamjad1739]

You said "ITERATOR" and I heard "CINDERALLA".

[@mauricioperez3645]

why all code courses have this annoying keyboard click always so loud, it's a big distraction.

[@pencilpopart]

I deem this video completely unhelpful, because after 10 minutes I still didn't understand a word of it.

[@thejewelershand]

For me it was perfect

[@Rebel8MAC]

It seems to be a pattern for almost all coders fall into; they try to teach code to beginners but they explain things as if the person watching already knows many of the concepts of code and even thinks like a coder. So a lot of the videos are missing context for beginners and we can't even start because we dont have the right software or file not pointing to the correct location but we don't even know it's wrong because they skipped over that part. It's frustrating but I'm sure it's unintentional but it's weird how it in happens almost exclusively in the field of coding.

[@bengbeng2005]

@@Rebel8MAC I found this tutorial the best one that explains iterator, his way of teaching is very good, and yes most tutorials on youtube assume you have some programming background, but you can find books that go from scratch

[@itsnobledean9450]

To me, he's just all over the place with his explanations. This is not the video for me. I was confused up until I left.