how to find unique elements in array in javascript
let a = ["1", "1", "2", "3", "3", "1"];
let unique = a.filter((item, i, ar) => ar.indexOf(item) === i);
console.log(unique);how to find unique elements in array in javascript
let a = ["1", "1", "2", "3", "3", "1"];
let unique = a.filter((item, i, ar) => ar.indexOf(item) === i);
console.log(unique);find unique value on array
const a = [1, 9, 2, 2, 3, 4, 1, 7, 8, 0, 9, 0, 1, 5, 3];
const b = a.filter(function (item, index, array) {
return array.lastIndexOf(item) === index; // this will return the unique elements
});Copyright © 2021 Codeinu
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