+'use strict';
+
+var toPosInt = require('../../number/to-pos-integer')
+ , callable = require('../../object/valid-callable')
+ , value = require('../../object/valid-value')
+
+ , hasOwnProperty = Object.prototype.hasOwnProperty
+ , call = Function.prototype.call;
+
+module.exports = function (cb/*, thisArg*/) {
+ var i, self, thisArg;
+ self = Object(value(this));
+ callable(cb);
+ thisArg = arguments[1];
+
+ for (i = (toPosInt(self.length) - 1); i >= 0; --i) {
+ if (hasOwnProperty.call(self, i) &&
+ call.call(cb, thisArg, self[i], i, self)) {
+ return true;
+ }
+ }
+ return false;
+};