return this.inject([], function(array, value) { return array.concat(value && value.constructor == Array ? value.flatten() : [value]); 
return this.map(function(value, index) { return iterator(collections.pluck(index)); 
    return this.inject([], function(array, value) {      return array.concat(value && value.constructor == Array ?        value.flatten() : [value]);    });
6462	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6462/328e05b227c420e11178ba4eb2eb0e10862b193f/prototype.js/clean/wp-includes/js/prototype.js