How to flatten a javascript array using flatMap #shorts

sharing a useful method to flatten an array of nested array

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[abdulamite]

This is great to know, but should also consider depth of the map. For example if you have further nester arrays, it will hoist the nested array up 1 level, but it doesn't drill down and bring everything to the parent most array.

[zakuguriin]

That's nice. I saw a video actually using this 2 combine 2 separate arrays. They had an array of card values and an array of suits. The flatmap allowed him to generate 1 array with 52 cards.

[kabiskac]

We can also use Array.flat() instead in this case

[yalgaar]

Nice 👍 I going a subscribe your channel 😊

[web_hub]

What is this editor and what is the extension that show errors ?

[riceball]

I’m new to coding. When would I need to use a nested array? Any real world examples?

[DARSHAN]

I like how your linting gives exact errors. I want to know what settings you have used for eslint, or is it a different linter?

[phyothihakyaw]

Hi sir, what extension do you use to show that error message when typing?

[theseangle]

Does it work with arrays of objects of recursive type? I.e
interface testArr = {
label: string,
children: testArr[]
}

[Furryfluff]

What plug-in are you using that tells you the errors in your code.