JSFiddle - React, Tailwind, and code Playground

by Bilal Zafar

JavaScript

let arrA = [0, 4, 8, 16];
let arrB = [0, 2, 6, 12, 14, 20];

Array.prototype.unique = function() {
    var a = this.concat();
    for(var i=0; i<a.length; ++i) {
        for(var j=i+1; j<a.length; ++j) {
            if(a[i] === a[j])
                a.splice(j--, 1);
        }
    }
    return a;
};

let arr = arrA.concat(arrB).unique().sort(function(a, b) {return a - b;});

console.log(arrA.concat(arrB).unique().sort(function(a, b) {return a - b;}));