javascript shuffle an array

1array.sort(() => Math.random() - 0.5);

1yourArray.sort(function() { return 0.5 - Math.random() });

1const shuffleArray = (arr) => arr.sort(() => 0.5 - Math.random());
2
3console.log(shuffleArray([1, 2, 3, 4]));
4// Result: [ 1, 4, 3, 2 ]
5

1/**
2 * Shuffles array in place.
3 * @param {Array} a items An array containing the items.
4 */
5function shuffle(a) {
6    var j, x, i;
7    for (i = a.length - 1; i > 0; i--) {
8        j = round(random() * (i + 1));
9        x = a[i];
10        a[i] = a[j];
11        a[j] = x;
12    }
13    return a;
14}
15
16shuffle(array);

1function shuffleArray(array) {
2    for (let i = array.length - 1; i > 0; i--) {
3        const j = Math.floor(Math.random() * (i + 1));
4        [array[i], array[j]] = [array[j], array[i]];
5    }
6}

1let numbers = [5, 458 , 120 , -215 , 228 , 400 , 122205, -85411];
2numbers = numbers.sort(function(){ return Math.random() - 0.5});
3/* the array numbers will be equal for example to [120, 5, 228, -215, 400, 458, -85411, 122205]  */