Map, Set, WeakMap & WeakSet in JavaScript - Frontend Interview Series🔥 Episode 8

Here is a simple real time solution on Map, Set, WeakMap and WeakSet in Javascript. I am trying to explain with those JavaScript objects with very simple way.

⭐ Timestamps to Skip the video:
00:00 - Don't skip anything 🙏
01:46 Set ⭐
11:42 Map
18:14 WeakSet⭐
22:22 WeakMap

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[TechnicalSuneja]

00:00 - Don't skip anything 🙏
Aur kya haal sabke?
btao next topic JS kon sa hona chahiye ??

[rajukumar-yqqf]

Bhagwan aapko hamesha khus rakhe aur aapke parents and pure family ko . full time job ke bad video banana editing karna aur hum logo ke liye naye naye and effectfull content lana . jo concept company point of view se related hota hai love you sir.

[inspiredomkar]

Difference between Set and WeakSet :
Set:
Value Types:

Set can store any JavaScript value, including primitive data types (numbers, strings, booleans, etc.) and objects (including functions and other sets).
Reference Handling:

Set holds strong references to the values stored in it. Even if the value is removed from the set, the reference to the object prevents it from being garbage collected.
Iteration:

Iterating over the elements of a Set is straightforward using methods like forEach, for...of, or the entries method.
Size Property:

Set has a size property that reflects the number of elements in the set.


WeakSet:
Value Types:

WeakSet can only store objects and does not accept primitive data types.
Reference Handling:

WeakSet holds weak references to the objects it contains. This means that if there are no other references to an object stored in a WeakSet, it may be garbage collected.
Iteration:

WeakSet does not provide direct methods for iterating over its elements. It lacks methods like forEach, for...of, and entries.
Size Property:

WeakSet does not have a size property because of the weak reference nature; you cannot directly count the number of elements.

[muskanvarshney]

thank you, its very helpful and concept clarification, is very clear and after so many videos this series is awesome

[ankushladani]

Thank you sirji.... continue this series plzzz sirji....

[akashdubey]

I bought around 2, 3 courses but still i need your video for get more clarification, just wanna say, thank you:)

[Callme_Dee.]

Thanks for sharing your knowledge. It is really very helpful.. Also please try to come up with a project tutorial in react with redux. It ll be more like learning while doing. Thanks& Regards

[mrlogicals]

Majedar haha Priyanka ka name koi nhi lega😆

[Scienceandfunfanclub]

Thanks a lot for this series. It's really helpful

[hritikkataria]

Hloo bde bhaii bhaii ek vdo html or css k jo bhi main main topics hai or jo important h jo jada krr interviews m puchte hai usski vdo bhi bnadoo....

[getknowledgebite]

Demand for full video on React projects

[howto]

by spelling bhi galat hai, iterate ki interated likha hai, apart from this its really good and helpful, just making serious mind relax :) or I'm joking

[महात्मा-गांधी-असली-वाले]

how weak is different from set apart from only store object in weakset, no iterate. why it's name is weakset isko thoda ache se batao.

[creativitychannel]

Sir ap API kaa tutorial banaiyaa, two fector authentication, kaay baraa may bateyaa.

[anupkumargupta]

Bhaeya what is the difference between array method map and map we learn in this video plz clear this dought

[alexmercer]

@21:54 "you can't store obj & can't iterate"

yeh toh ahi se bho pata chal jyega,
we need actual knowledge about "why weak map is needed"
"why it is even there for"

[gandharthakar]

ajay sir lekin isme map aur set ka toh samjh aa gaya ki wo prototype me aap ko sare functions provide kar raha hai lekin phir Waekset AUr Weakmap ka use case kya hai ?

[suyogbankar]

Hello tricky javascript coding interview questions ka problem lelo koi..which will help to crack interview and improve knowledge as well

[muhammadnaeem-jmlh]

Sir what is best operating system for development window or Ubuntu ??
Which one is mostly used in industry ???

[ManojKumar-opot]

Did you mention that we need to use (value, key) for Map forEach instead of (key, value) ?