2846   function are_both_numbers(l,r) { return typeof(l) === 'number' && typeof(r) === 'number' }  argument
2848   Opal.rb_plus   = function(l,r) { return are_both_numbers(l,r) ? l + r : l['$+'](r); };  argument
2849   Opal.rb_minus  = function(l,r) { return are_both_numbers(l,r) ? l - r : l['$-'](r); };  argument
2850   Opal.rb_times  = function(l,r) { return are_both_numbers(l,r) ? l * r : l['$*'](r); };  argument
2851   Opal.rb_divide = function(l,r) { return are_both_numbers(l,r) ? l / r : l['$/'](r); };  argument
2852   Opal.rb_lt     = function(l,r) { return are_both_numbers(l,r) ? l < r : l['$<'](r); };  argument
2853   Opal.rb_gt     = function(l,r) { return are_both_numbers(l,r) ? l > r : l['$>'](r); };  argument
2854   Opal.rb_le     = function(l,r) { return are_both_numbers(l,r) ? l <= r : l['$<='](r); };  argument
2855   Opal.rb_ge     = function(l,r) { return are_both_numbers(l,r) ? l >= r : l['$>='](r); };  argument
7151     $def(self, '$[]', function $String_$$$8(index, length) {  argument
7167           index += size;  field
7227         index += size;  field
12364     function $array_slice_range(self, index) {  argument
12404     function $array_slice_arithmetic_seq(self, index) {  argument
12428     function $array_slice_index_length(self, index, length) {  argument
12461     $def(self, '$[]', function $Array_$$$10(index, length) {  argument
12475     $def(self, '$[]=', function $Array_$$$eq$11(index, value, extra) {  argument
12596     $def(self, '$at', function $$at(index) {  argument
12966     $def(self, '$delete_at', function $$delete_at(index) {  argument
13147     $def(self, '$fetch', function $$fetch(index, defaults) {  argument
13456     $def(self, '$insert', function $$insert(index, $a) {  argument
13700         permute = function(num, perm, index, used, blk) {  argument
14257     $def(self, '$slice!', function $Array_slice$excl$46(index, length) {  argument
21663 …send(self.$class().$members(), 'each_with_index', [], function $$10(name, index){var $b, self = $$…  argument
22661         paths = $send(paths.$flatten().$each_with_index(), 'map', [], function $$4(item, index){  argument
22673         $send(paths, 'each_with_index', [], function $$5(item, index){var next_item = nil;  argument