rem: return this.select(function(value) { return value != undefined || value != null; 
add: this.each(function(value, index) { ((iterator || Prototype.K)(value, index) ? trues : falses).push(value); 
context:     return this.select(function(value) {      return value != undefined || value != null;    });
meta: 1164	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1164/cb2408a82c9bc93bef177dc33a8981bc36800839/prototype.js/buggy/tools/prototype.js