return this.inject([], function(array, value) { return array.include(value) ? array : array.concat([value]); 
return this.select(function(value) { return !values.include(value); 
    return this.inject([], function(array, value) {      return array.include(value) ? array : array.concat([value]);    });
6462	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6462/110aa6ceb19f486c3930285023b66d3f23fdf6c4/prototype.js/buggy/wp-includes/js/prototype.js