From: Martin DeMello <martindemello@...>
Date: 2003-07-21T19:40:44+09:00
Subject: Re: Proposal: Array#to_h, to simplify hash generation

Gavin Sinclair <gsinclair@soyabean.com.au> wrote:
> 
> I like "make_hash".  We would get more flexibility if "make_hash" insisted
> on receiving two values for the block: one for key and one for value.  In
> one instance recently, I wanted to map the "filename" part of a data
> object to the object itself.  This, I think, is readable:
> 
>   map = receipts.make_hash { |r| r.filename, r }

It'd be nice if => were merely an alias for , so that we could say
   
   .make_hash {|r| r.filename => r}

with two arguments, there's always the risk of confusing them.

Perhaps .make_hash {|r| {r.filename => r}}, where it updates the hash
with the anon hash. Inefficient, though, and it has the ugly {{ }}.

> (I don't know why you put the asterix there; Ranges are Enumerable.)

Yeah, I forget that from time to time.

martin