From: Max Williams <toastkid.williams@...>
Date: 2007-11-21T02:03:34+09:00
Subject: Quick way to get attributes (without using collect)

This was inspired by Rails, but i think it's common Ruby question.  Say
i have an array of Employee objects, which have an attribute "name".  I
want to get all the names, as an array.

Let's say i already have the variable "employees", which points to an
array of Employee objects.

What i want to do is something like this -

  employee_names = employees.names

But what i have to keep on doing is something like this -

  employee_names = employees.collect{ |emp| emp.name}

Now, this isn't a *massive* hassle, and i find Array#collect incredibly
useful, but it's a bit annoying to have to keep typing it again and
again.  Is there a way to set it up so that

.foos

is automatically treated as

.collect { |x| x.foo }

?

Or another way to do this simply?

thanks
max
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