JavaScript ES6 Tutorial #10 - Sets

Hey gang, in this ecmascript 6 tutorial, I'll introduce you to the new data type - sets. Sets in JavaScript allow us to store a set of unique values, and will not store any duplicate values.

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[catalinim]

holy shit dude, just a few days ago I was desperately searching for a solution to remove duplicates from a string, and now this super simple solution... thanks!

[lazyaussiensw]

Learing kungfu and JS together is amazing

[iFrancisDC]

Can you also do a tutorial on Map(), please?

[ninjarogue]

thank you for the informative and concise tutorial!

[ILikeADoDaChaCha]

Very helpful, thank you for the demonstration.

[atviksordatviksord]

fml, i literally just spent ages in making sure that i add multiples if there are and then add an item if it doesnt exist based on an "all item" array, it was such a hassle to loop through both and do all the checks, while i couldve just used fucking sets to solve it easily, LOL. ill watch more of your vids, easily understood this. +1

[justingolden]

Combining a bunch of examples:

const removeDuplicates(arr) => [...new Set(arr)];

[mayankgangwal]

We can also convert Set object to an Array object, with Array.from
ninjas = Array.from(refinedNinjas);

[hund]

How do i address a complex Object in Set?

[sarvarsharapov]

super easy explanation thank you so much :-)

[Gruximillian]

Hi Shaun, thanks for the great videos!
Is there a way to access one element from the set, like you can do it from an array with array[i]?
Also, you showed examples only with strings being the elements of the set, but it's worth noting that elements can be numbers and objects as well, I haven't tried booleans, but I believe that they can be elements of the set too.

[iFrancisDC]

Hi, ninjafrend! What's the reason using a set() instead of a regular array, if you transform a set() to a regular array with the spread operator?

[valikonen]

Yes tutorial, but the reality is different, we work day by day with array of objects and rare with simple array like in this example.