This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Hash.delete (from ruby core) --- hash.delete(key) -> value or nil hash.delete(key) {|key| ... } -> object --- Deletes the entry for the given `key` and returns its associated value. If no block is given and `key` is found, deletes the entry and returns the associated value: h = {foo: 0, bar: 1, baz: 2} h.delete(:bar) # => 1 h # => {:foo=>0, :baz=>2} If no block given and `key` is not found, returns `nil`. If a block is given and `key` is found, ignores the block, deletes the entry, and returns the associated value: h = {foo: 0, bar: 1, baz: 2} h.delete(:baz) { |key| raise 'Will never happen'} # => 2 h # => {:foo=>0, :bar=>1} If a block is given and `key` is not found, calls the block and returns the block's return value: h = {foo: 0, bar: 1, baz: 2} h.delete(:nosuch) { |key| "Key #{key} not found" } # => "Key nosuch not found" h # => {:foo=>0, :bar=>1, :baz=>2}
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.