#33 Maps and Weak Maps | JavaScript Full Tutorial

Рет қаралды 5,225

3 жыл бұрын

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In this lesson we're going to be learning all about Maps and Weak Maps. Maps are basically a collection of key data items, similar to an Object. The main difference between a Map and an object is that a Map allows keys of any type. In this lesson we learn about how to create and use Maps.
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Пікірлер: 20

@SvetaSveta-ms4hi 2 жыл бұрын

I can't thank you enough for exerting a lot of effort to make such an absolutely incredible tutorial. You truly have a knack for explaining things in a way that everybody can wrap their head around pretty complex stuff. Thanks a bunch! 🙏

@aleksanderdorkov5312 3 жыл бұрын

This channel deserves more views, I see all of this garbage tutorials, where for 20 min they say nothing, but get 100k views, because they farmed more subs

@DevDreamer 3 жыл бұрын

Hey Aleksander, thank you so much. I appreciate the support 🙂👍

@not.sardar 28 күн бұрын

Very helpful, thank you sir!!

@rasjohse 3 жыл бұрын

Brother greetings from Venezuela, I agree with most of the comments, excellent content and I hope you can finish the tutorial. Successes

@DevDreamer 3 жыл бұрын

Thank you 🙂👍

@whatthefunction9140 3 жыл бұрын

what is a use case for a weak map?

@stumbleguysproboy8471 3 жыл бұрын

Your tutorials are great

@xeit0 Жыл бұрын

There's one important detail missing, WeakMaps allow for garbage collection, meaning if a key is no longer in use it will be, well, garbage collected. This is the main use case since Maps aren't subject to garbage collection.

@creatingwithcode1630 3 жыл бұрын

Amazing content Amit! Thank you for these excellent lessons.

@DevDreamer 3 жыл бұрын

Hey brother! Thank you so much 🙂 👍

@gokulkrishna9264 2 жыл бұрын

Awesome

@bikrantjungbudhathoki3687 3 жыл бұрын

Hey dev dreamer. I have one question, If i have many buttons that performs same function onclick, then how do I select those all buttons in one variable? those buttons have their own ID.

@DevDreamer 3 жыл бұрын

Hey Bikrant, thank you for watching 🙂 You want to give each of those buttons the same class name, and then use getElementsByClassName: let x = document.getElementsByClassName("example");