Answers for "js get uniques from array"

javascript find unique values in array

// usage example:
var myArray = ['a', 1, 'a', 2, '1'];
var unique = myArray.filter((v, i, a) => a.indexOf(v) === i); 

// unique is ['a', 1, 2, '1']

javascript get unique values from key

const unique = [...new Set(array.map(item => item.age))];