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Last Updated: February 25, 2016
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93
· gnclmorais
C740358b2cce341557a23ffb981aacf2

Simplest ‘getUniqueValues’ in JavaScript arrays

I’ve been finding this question a lot in job interview exercises, and I always take more time than I should to solve it because I keep forgetting how to do it.

This might not be the best/fastest solution, but it’s the simplest I’ve found to do it:

[…].filter(function (val, idx, arr) {
    return arr.indexOf(val) === arr.lastIndexOf(val);
});
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