when use JS .includes() vs .some()?

Question

some() - if it finds an array element, the function returns a true and does not check the remaining values.

while...

includes() - for all elements in the array does a generic compare and return true if it finds the match or at the first match?

When to use some and when includes?

use `Array.some()` for array of Objects, or for special condition — Mister Jojo, Nov 21 '20 at 18:11

score 71 · Answer 1 · edited Nov 21 '20 at 20:01

71

some takes in a callback function where you can write your own logic to determine if an array contains some element which matches the conditions you wrote.

includes does a generic equalTo comparison on every element and will return true if at least one element in the array is equal to the value to find.

edited Nov 21 '20 at 20:01

Adrian Mole

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answered Nov 21 '20 at 18:24

RecursiveThinking

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I'm wondering if includes will always operate on the entire collection or will break when the condition is true (like some). – Sagiv b.g Feb 28 '23 at 13:59
@Sagivb.g '...will return true if at least one...' – northernwind Jun 08 '23 at 07:38

when use JS .includes() vs .some()?

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