text: // Copyright (c) 2012 Ecma International.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  esid: sec-array.prototype.filter
  es5id: 15.4.4.20-3-10
  description: >
      Array.prototype.filter - value of 'length' is a number (value is
      NaN)
  ---*/
  
          var accessed = false;
          function callbackfn(val, idx, obj) {
              accessed = true;
              return true;
          }
  
          var obj = { 0: 9, length: NaN };
  
          var newArr = Array.prototype.filter.call(obj, callbackfn);
  
  assert.sameValue(newArr.length, 0, 'newArr.length');
  assert.sameValue(accessed, false, 'accessed');
  