1var indexOf;
2
3if (Array.prototype.indexOf) {
4    indexOf = Array.prototype.indexOf;
5} else {
6    indexOf = function (o) {
7        // I know
8        var i;
9        for (i = 0; i < this.length; ++i) {
10            if (this[i] === o) {
11                return i;
12            }
13        }
14        return -1;
15    };
16}
17
18export { indexOf as default };