How to sort an array to bring out element that are the same?

Question

Array = [40, 2, 40, 10, 5, 6, 10, 5, 6, 18, 15]

Sort the array to bring out homogeneous element

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score 2 · Answer 1 · answered Dec 28 '19 at 09:53

2

You could take a Set and filter the values who are alreday seen.

var array = [40, 2, 40, 10, 5, 6, 10, 5, 6, 18, 15],
    seen = array.filter((s => v => s.has(v) || !s.add(v))(new Set));

console.log(seen);

answered Dec 28 '19 at 09:53

Nina Scholz

You filtered the array, Wat is the value of s and v in your code – iamgabrielsoft Dec 28 '19 at 11:00
`s` is the instance of `Set` as closure and `v` is a value from the array. – Nina Scholz Dec 28 '19 at 11:04
@NinaScholz how the `v` is available inside IIFE it this because of closure. – Ace Dec 28 '19 at 12:29

1 Answers1