rem: return this.map(function(value, index) { return iterator(collections.pluck(index)); 
add: this.each(function(value, index) { (iterator(value, index) ? trues : falses).push(value); 
context:     return this.map(function(value, index) {      return iterator(collections.pluck(index));    });
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/prototype.js/buggy/typo3/contrib/prototype/prototype.js