Set 3:10 add method 4:33 delete method 5:07 clear method 5:33 has method 6:00 size property Map 12:05 set method 12:57 delete method 13:45 clear method 14:04 has method 14:40 size property

7:50 - map

Man I Thank You Strongly For Make Everything Crystal Clear..

Thanks for the explanation! And from my understanding 'Set' is the best way to always ensure correct key order which a regular object can't rely on.

Your coding flow is nice. The smooth use of shortcuts and line movements are fantastic.

Nice video, please make one more for advance use of SET and MAP, covering more scenarios, where it should be used practically instead of any other data structure.

the way youre explaining is so different. such clarity

Wow, no more search abt JS Set n Map, thank U so much Bro!👍

Jaha pana Tusi Great ho :). A beginner like me in Javascripts. I was able to understand your map & set concepts and am able to implement the same in my code. working successfully. Thanks & God bless you

Thank you for this video!!! I finally know how to use a Map!!! :D

Thank you. Really appreciate this vid. Subbed!

Really nice explanation, thanks you. I expected to also learn Map.get.

Hi, adding all those empty objects to the map (at ~12:34) was a bit misleading. From my tests, I'm pretty sure that you would never have been able to run myMap.delete({}) or myMap.has({}) because each of those empty objects is stored at a different location in memory. So what's the point in creating them? You appeared to be showing that one of the advantages of Map compared to a regular object is that you can create duplicate keys in a map (i.e. multiple empty objects). But in fact ''duplicate" keys are NOT possible in myMap. In your example, each empty object you create as a key is a different thing in memory. And because you have created those keys without a reference to them in memory, i.e. being stored as a variable, once those keys are created, you can no longer access them using .has({}). Let me know if I'm wrong.

thaks for this awesome tutorial, very helpful, cleared my confusion about sets and maps. thnks

A video with more practical examples would be great! Nice video!

This is a great introduction!!

Awesome bro. Please keep it up.

Well explained, thank you.

Clear and concise! But you forgot to mention the get methods to get the value after setting

thanks, keep uploading!

You help me a lot. Thanks!

Great video, thank you.

For your information, you can not store multiple same keys of type number or string in MAP. Multiple same keys can only work with non-primitive datatype , when set as a key

Good lesson, thanks :)

nicely problem solution approach! keep it up

lol I needed this video 5 hours ago before my technical assessment.

Also, you can use get() to get the value from a Map property by its key.

Simple spot on.

explanation is awesome.

Thank you!

Please make a more videos on Javascript. Which will help to solve Data structures and algorithms problems

great video

nice vide, finally i got it the difference and why it is useful. may i ask you what is that extension with the rocket down below that it says 2.3h? is like a focus mode activated?

Great video!

nice video... very good explained :)

Thanks for the video. But, in the Map, why would you want to have an empty object as the key? How would you access that item in the Map

Thank you for your explanation and examples they are very useful, I also read the doc but your explanation makes things a lot easier~ Great thanks, one sub for ya~

Nice .

so maps can hold any value as either the key or value from what ive read. which means the key itself can be any primitive value or object. im having trouble understanding what the use case would be for using an object as a key? i just cant seem to wrap my brain around it was wondering if you had any insight?

Helpful

You miss very important aspect, how to loop over them.

Thanks a lot

Can you explain map delete with multiple empty objects as keys?

add the map.get method explanation... good work!

Great tutorial but watch it at 2x speed!

Thankyou

Can you make video on set key,values and entries methods?

Great 👍you should make a series "data structures using js"

2:06 It's amazing as a beginner trying to learn javascript, how often a decent video gets ruined because the teacher uses a term that is totally new without explaining it. So many people that know how to do something don't actually know how to tech things to beginners because they use terms that are more advanced.

Hi, I have one query. how can we delete non-primitive values from set

superrrrrrr!

If i have 2 same key in the map and if i delete with the key what would happen?

How we can maintain set of unique objects? Javascript doesn't have equals method as Java to compare objects. right?

im confuse. i thought const cannot be reassigned. how can you use add and delete ?

how to delete object inside of [1, 2, 3, 4, 6, {id: 7}] i wanna achieve to delete object {id: 7 } with Set delete method, i would be like this mySet.delete({id: 7}) is it right ?

How is it possible to change the const value?

I guess I don't get the value of a _set_ object. Surely it has to have more than just being unique. It'd be easy enough to write a method to remove redundant entries from an array. Where are the methods for doing set intersection, union, and subtraction, for instance? In _set theory,_ you use these operations all the time.

At 0:52 how did you copy paste the second console.log???

i am a newbie on Js, please how do i get my vscode to show the console of my code

You forgot ‘get’ function in Map to get the value from the key like myMap.get(1) will output ‘one’.

Maps start here 8:13

What's the color theme?

Can I hug you ? 😍

but why would i want to map an empty object to a value?

How to delete non-primitive value from set?

console.log("Thanks!");

Still couldn't understand what's the real life advantage of Map comparing to Object 🤔

15:20 an