JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [77, 82, 12, 48, 33, 91, 21, 65, 23, 43];
var newArr = [];

while (arr.length > 0) {
 newArr.push(arr.splice(Math.floor(Math.random() * arr.length), 1));
}

document.write( 'newArr = [ ' + newArr + ' ]');
document.write ("<br />");
document.write( 'arr = [ ' + arr + ' ]');