From: dblack@...
Date: 2007-08-02T04:12:57+09:00
Subject: Re: Ruby Array to Hash (a better way?)

Hi --

On Thu, 2 Aug 2007, Kyle Schmitt wrote:

> I've been using Ruby for awhile, and I'm afraid I've never used the *
> notation...
>
> I can see that Hash[a] wouldn't work, and that Hash[*a] expands the
> array out so that Hash can use it elegantly.
>
> But what, in a general, does the * do?
>
> Or is it just for special cases like this?

It "un-arrays" its operand; in other words, given an array, the *
gives you a list.


David

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