This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Array.uniq! (from ruby core) --- array.uniq! -> self or nil array.uniq! {|element| ... } -> self or nil --- Removes duplicate elements from `self`, the first occurrence always being retained; returns `self` if any elements removed, `nil` otherwise. With no block given, identifies and removes elements using method `eql?` to compare. Returns `self` if any elements removed: a = [0, 0, 1, 1, 2, 2] a.uniq! # => [0, 1, 2] Returns `nil` if no elements removed. With a block given, calls the block for each element; identifies (using method `eql?`) and removes elements for which the block returns duplicate values. Returns `self` if any elements removed: a = ['a', 'aa', 'aaa', 'b', 'bb', 'bbb'] a.uniq! {|element| element.size } # => ['a', 'aa', 'aaa'] Returns `nil` if no elements removed.
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.