rem: this.each(function(value, index) { memo = iterator(memo, value, index); 
add: return this.eachSlice(number, function(slice) { while(slice.length < number) slice.push(fillWith); return slice; 
context:     this.each(function(value, index) {      memo = iterator(memo, value, index);    });
meta: 10582	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10582/c1f8a57fb495053291d684e68f518dd14dfa0a6f/prototype.js/clean/js_test/prototype.js