Easily store unique values from an array with multiples of those values.

unique-in-array.js

var distinctValues = ['one', 'two', 'three', 'four', 'five', 'two', 'one', 'three', 'three', 'four'].filter((val, idx, me) => {
	return me.indexOf(val) === idx;
});

console.log(distinctValues);
// ['one', 'two', 'three', 'four', 'five'];