| 'use strict'; | |
| var callable = require('../../../object/valid-callable') | |
| , value = require('../../../object/valid-value') | |
| , some = Array.prototype.some, apply = Function.prototype.apply; | |
| module.exports = function (predicate/*, thisArg*/) { | |
| var k, self; | |
| self = Object(value(this)); | |
| callable(predicate); | |
| return some.call(self, function (value, index) { | |
| if (apply.call(predicate, this, arguments)) { | |
| k = index; | |
| return true; | |
| } | |
| return false; | |
| }, arguments[1]) ? k : -1; | |
| }; |