30-seconds-of-code/snippets/uniqueElements.md

uniqueElements

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]