From: sdieselil@... (sdieselil)
Date: 2003-03-26T22:07:38+09:00
Subject: How can one implement composition of functions in Ruby?

Hi

I'm deliberating about what language to choose: Ruby or Python. One of
the most important issues for me is the ability to write in a
functional style of programing. So far I saw than python supports it
more but may be I'm wrong?
Here comes the question: how can I implement composition of functions
in Ruby,i.e. how can I write a function that takes two other functions
as arguments and returns a function that composes them?

Here is a way to do it in python:

def compose(f,g):
    return lambda x: f(g(x))