'use strict';
  
  var toPosInt = require('../../number/to-pos-integer')
    , eq    = require('../../object/eq')
    , value = require('../../object/valid-value')
  
    , hasOwnProperty = Object.prototype.hasOwnProperty;
  
  module.exports = function (other) {
  	var i, l;
  	(value(this) && value(other));
  	l = toPosInt(this.length);
  	if (l !== toPosInt(other.length)) return false;
  	for (i = 0; i < l; ++i) {
  		if (hasOwnProperty.call(this, i) !== hasOwnProperty.call(other, i)) {
  			return false;
  		}
  		if (!eq(this[i], other[i])) return false;
  	}
  	return true;
  };