rem: return this.collect(function(value, index) { 
add: return this.map(function(value, index) { 
context:   sortBy: function(iterator) {    return this.collect(function(value, index) {      return {value: value, criteria: iterator(value, index)};    }).sort(function(left, right) {      var a = left.criteria, b = right.criteria;      return a < b ? -1 : a > b ? 1 : 0;    }).pluck('value');  },
meta: 3158	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3158/53dfa93e53bccf5af1729cbdce88cb70e1ffcca5/prototype.js/clean/public/javascripts/prototype.js