Test case details

Preparation Code

<script>   var ar = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; </script>

Test cases

Test #1

for (var i = 0; i < ar.length; i++) {   if (ar[i] === 5) {     break;   } }

Test #2

var a = ar.indexOf(5);

Test #3

function indexOf(array, value) {   for (var i = 0; i < array.length; i++) {     if (array[i] === value) {       break;     }     return i;   } } var a = indexOf(ar, 5);