This is the first post on this blog so I will start with something short, easy and funny - namely Ruby. Known for its elegant syntax and dynamic typing working with hashes is both easy and intuitive. Let’s say you want to delete a key in a hash but you’re not sure the key exists. This is one way to do it: hash = {"Miley Cyrus" => "Annoying", "Kelly Clarkson" => "Gone"} hash.each do |k,v| if k.eql?("Kelly Clarkson") hash.delete("Kelly Clarkson") end end p hash #=> {"Miley Cyrus"=>"Annoying"} Check the ruby doc for more info and methods