This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Array.assoc (from ruby core) --- array.assoc(obj) -> found_array or nil --- Returns the first element in `self` that is an Array whose first element `==` `obj`: a = [{foo: 0}, [2, 4], [4, 5, 6], [4, 5]] a.assoc(4) # => [4, 5, 6] Returns `nil` if no such element is found. Related: #rassoc.
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.