for loop remove duplicates javascript code example

Example 1: javascript remove duplicates from array

unique = [...new Set(arr)];   // where arr contains duplicate elements

Example 2: javascript remove duplicates from array

var myArr = [1, 2, 2, 2, 3];
var mySet = new Set(myArr);
myArr = [...mySet];
console.log(myArr);
// 1, 2, 3