From: "Florian Groß" <florgro@...>
Date: 2005-12-24T10:23:48+09:00
Subject: Re: How to sort this hash?

Jeff Cohen wrote:

>>jobs.sort{|a,b|a[1][sort_by] <=> b[1][sort_by]}.each do |k, attributes|
> I just can't quite understand the [sort_by] usage here...?

It looks up the value in the hash from a[1] (a[0] is "2231" / "1131" / 
"231" for the sample data) that represents to the key identified by sort_by.

So if sort_by is "command" it will sort the jobs by the value 
corresponding to their "command" key. Which is "test_a.bash" for job 
"2231", "test_b.bash" for job "1131", "test_c.bash" for job "231" and so 
on...

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