Test case details

Preparation Code

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.8.0/lodash.js"></script>
var array = _.shuffle(_.range(1000));

Test cases

Test #1

var r = array.indexOf(1000);

Test #2

var r = _.indexOf(array, 1000);

Test #3

var r = _.indexOf(array, 1000, true);