'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;
  };