From: Edward Faulkner <ef@...>
Date: 2005-10-20T04:51:19+09:00
Subject: Re: Functional with Ruby

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On Thu, Oct 20, 2005 at 04:34:49AM +0900, Ara.T.Howard wrote:
> i don't think it is functional because the name of the function
> cannot be used as a first class object.

Well, that's true of Ruby in general.  If you want to turn a method
name into a first class object, you can do this:

x = myarray.instance_method(:inject)
x.call {|a,b| a+b}

Or this:

x = Array.instance_method(:inject)
x.bind(myarray).call {|a,b| a+b}

regards,
Ed

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