How to return array element with no duplicate ?? Javascript solution

Asked Mar 29 '22 at 15:11

Active Mar 29 '22 at 15:20

Viewed 28 times

We have a array of numbers. let's say

const num = [ 10, 12, 4, 3, 5, 5, 10, 12 ];

Element with no duplicate is 4 and 3 in the 'num' array. So function should return array such elements. It would be better if some in-built methods (eg: filter, indexOf etc..) can be used in the solution.

input = [ 10, 12, 4, 3, 5, 5, 10, 12 ];
required output = [4, 3];

asked Mar 29 '22 at 15:11

Alish Madhukar

1

Does this answer your question? https://stackoverflow.com/a/14438954/11095009 – S.Marx Mar 29 '22 at 15:13
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@NeERAJTK No, that would return values that have duplicates. E.g., `10` and 12`. OP only wants the ones which have no duplicates. – VLAZ Mar 29 '22 at 15:15
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I believe OP wants to remove completely any non-unique members of the array (count > 1). – PM 77-1 Mar 29 '22 at 15:15
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Good duplicate: https://stackoverflow.com/questions/43505967/completely-removing-duplicate-items-from-an-array – PM 77-1 Mar 29 '22 at 15:20
const num = [ 10, 12, 4, 3, 5, 5, 10, 12 ]; function uniqueVal(arr){ let newArr = arr.filter((e,i,a) => a.indexOf(e) !== i); return newArr; } – Alish Madhukar Mar 29 '22 at 15:23
getting opposite of what is required..@David – Alish Madhukar Mar 29 '22 at 15:24

How to return array element with no duplicate ?? Javascript solution

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