JSFiddle - React, Tailwind, and code Playground

by pierian_design

JavaScript

var array = [1, 2, 1, 10, 5, 3, 4, 40, 50];
var array2 = [1, 2, 1, 10, 60];

var newArray = array2.filter(function(elem, pos) {
    return array.indexOf(elem) === -1;
});
alert(newArray);