- all? (no args)
- all? (non-callable arg)
- all? (callable arg)
- all? (regex arg)
- all? (type arg)
- any? (no args)
- any? (non-callable arg)
- any? (callable arg)
- any? (regex arg)
- any? (type arg)
- count (no args)
- count (non-callable arg)
- count (callable arg)
- none? (no args)
- none? (non-callable arg)
- none? (callable arg)
- none? (regex arg)
- none? (type arg)
- one? (no args)
- one? (non-callable arg)
- one? (callable arg)
- one? (regex arg)
- one? (type arg)
- include?/member?
- first (no args)
- first (n elements)
- take
- find/detect
- find/detect (if_non_proc)
- reject
- select/filter/find_all
- uniq (no args)
- uniq (predicate to determine uniqueness)
- collect/map (no args)
- collect/map (callable args)
- compact
- cycle (positive number)
- cycle (zero or negative number)
- cycle (no number)
- cycle (no arg)
- each (no args)
- each (callable arg)
- flat_map / collect_concat (no args)
- flat_map / collect_concat (callable arg)
- inject/reduce
- zip (no args)
- zip (callable arg)
- next
- peek
- rewind
- public_send
- respond_to
- send