JSFiddle - React, Tailwind, and code Playground

by Ehsan Sajjad

JavaScript

var array1 = [2, 7, 12, 23, 40, 44, 67, 88, 102]
var array2 = [3, 12, 14, 17, 23, 40, 41, 67, 108]
var array3 = [8, 12, 23, 40, 59, 86, 119, 130]

var flatArray = array1.concat(array2).concat(array3);

flatArray.sort(function sortNumber(a, b) { return b - a; });
var maxArray = flatArray.slice(0, 5);

alert(maxArray);