In Smalltalk, if you really need to find this, there is the Finder in which you can provide examples of input and output and it will suggest messages that imple

In Smalltalk, if you really need to find this, there is the Finder in which you can provide examples of input and output and it will suggest messages that implement the desired functionality. Also, the message does not need to be called "join," especially since it's use in the culture is ambiguous and confusing.