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: 8434	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8434/6873fc8026e87544ee93e0d9551ae57083313cff/prototype.js/clean/vendor/rails/railties/html/javascripts/prototype.js