JavaScript Data Structures - 4 - Set

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JavaScript Data Structures
Data Structures in JavaScript
Set

[mansichauhan]

Your style of speaking and explaining is so calming.

[raj]

You are Legend, helping developers community always, God bless you..

[Kingofmylife]

That's amazing and your work Also. Please continue to js data structure.

[Valyssi]

1:20 unless I'm misunderstanding your terminology, I believe this is incorrect. Many other languages use sets that don't maintain insertion order, but in JavaScript sets are specified as maintaing insertion order, which can be confirmed by looping through it

[rdrahuldhiman]

Hey Vishwas, I think the insertion order is respected in Set, check below text that I pulled from MDN docs for Sets.

Set objects are collections of values. A value in the set may only occur once; it is unique in the set's collection. You can iterate through the elements of a set in insertion order. The insertion order corresponds to the order in which each element was inserted into the set by the add() method successfully (that is, there wasn't an identical element already in the set when add() was called).

[susmitobhattacharyya]

Great content.

But, I have doubt can we do analogy and comparison between the array and set methods. Also what about the time complexity of the set methods?

[Ayoubmajid-uuyv]

// create new set :
const set = new Set([1, 2, 3]);

// add new value :
set.add(5);
// you can add duplicate values :
set.add(5);

// list a set :
for (element of set) {
console.log(element);
}

// check if value exist :
console.log(set.has(4));

// delete a value of set :
set.delete(3);

// get the length of the set :
console.log("the size of the set is : ", set.size);

// clear a set :
set.clear();

//list using foreach :
set.forEach((element) => {
console.log("the value: ", element);
});

[yogeshvanzara]

you said set are faster but didn't mention why?

[Kingofmylife]

I hope you.
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Is it possible?