1 function findIndex(array, predicate, self) {
2 var len = array.length;
4 if (len === 0) return -1;
5 if (typeof predicate !== 'function') {
6 throw new TypeError(predicate + ' must be a function');
10 for (i = 0; i < len; i++) {
11 if (predicate.call(self, array[i], i, array)) {
16 for (i = 0; i < len; i++) {
17 if (predicate(array[i], i, array)) {
26 module.exports = findIndex