rem: return this.map(function(value, index) { iterator(value = collections.pluck(index)); return value; 
add: this.each(function(value, index) { results.push(value[property]); 
context:     return this.map(function(value, index) {      iterator(value = collections.pluck(index));      return value;    });
meta: 6601	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6601/28b3187d07d97712c23182569a4d6fd00900b5f7/prototype.js/buggy/javascript/prototype/prototype.js