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30-seconds-of-code/snippets/uniqueElements.md
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uniqueElements array,beginner

Returns all unique values of an array.

Use ES6 Set and the ...rest operator to discard all duplicated values.

const uniqueElements = arr => [...new Set(arr)];
uniqueElements([1, 2, 2, 3, 4, 4, 5]); // [1, 2, 3, 4, 5]