579   function scan(pattern, iterator) {  argument
580     this.gsub(pattern, iterator);
821   function each(iterator, context) {  argument
825         iterator.call(context, value, index++);
833   function eachSlice(number, iterator, context) {  argument
838     return slices.collect(iterator, context);
841   function all(iterator, context) {  argument
842     iterator = iterator || Prototype.K;
845       result = result && !!iterator.call(context, value, index);
851   function any(iterator, context) {  argument
852     iterator = iterator || Prototype.K;
855       if (result = !!iterator.call(context, value, index))
861   function collect(iterator, context) {  argument
862     iterator = iterator || Prototype.K;
865       results.push(iterator.call(context, value, index));
870   function detect(iterator, context) {  argument
873       if (iterator.call(context, value, index)) {
881   function findAll(iterator, context) {  argument
884       if (iterator.call(context, value, index))
890   function grep(filter, iterator, context) {  argument
891     iterator = iterator || Prototype.K;
899         results.push(iterator.call(context, value, index));
926   function inject(memo, iterator, context) {  argument
928       memo = iterator.call(context, memo, value, index);
940   function max(iterator, context) {  argument
941     iterator = iterator || Prototype.K;
944       value = iterator.call(context, value, index);
951   function min(iterator, context) {  argument
952     iterator = iterator || Prototype.K;
955       value = iterator.call(context, value, index);
962   function partition(iterator, context) {  argument
963     iterator = iterator || Prototype.K;
966       (iterator.call(context, value, index) ?
980   function reject(iterator, context) {  argument
983       if (!iterator.call(context, value, index))
989   function sortBy(iterator, context) {  argument
993         criteria: iterator.call(context, value, index)
1006     var iterator = Prototype.K, args = $A(arguments);
1008       iterator = args.pop();
1012       return iterator(collections.pluck(index));
1089   function each(iterator, context) {  argument
1091       if (i in this) iterator.call(context, this[i], i, this);
1232   function _each(iterator) {  argument
1237       iterator(pair);
1351   function times(iterator, context) {  argument
1352     $R(0, this, true).each(iterator, context);
1400   function _each(iterator) {  argument
1403       iterator(value);
1440   _each: function(iterator) {  argument
1441     this.responders._each(iterator);
6000   _each: function(iterator) {  argument
6003     })._each(iterator);