Sort Question

ruby-talk
1

I like the sort_by syntax. How stable is 1.7.2?

Mark

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-----Original Message-----
From: matz@ruby-lang.org [mailto:matz@ruby-lang.org]
Sent: 06 September 2002 02:24
To: ruby-talk@ruby-lang.org
Subject: Re: Sort Question

Hi,

In message “Re: Sort Question” on 02/09/06, Albert Wagner alwagner@tcac.net writes:

I want to sort the array (with these objects in it) by xnum…

ary = [Area_rep.new(1,‘a’), Area_rep.new(2,‘b’), Area_rep.new(3,‘c’)]
sortedAry = ary.sort {|a, b| b.xnum <=> a.xnum}

If you are using 1.7, you can

sortedAry = ary.sort_by {|x| x.xnum}

						matz.

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2

I like it too, but can’t answer your question. Bear in mind, however, that you
can add it yourself to 1.6. I think there’s an implementation in Pickaxe. I
was surprised when I saw Matz’s example because I thought the syntax was:

ary.sort_by :xnum

Gavin

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----- Original Message -----
From: “Firestone, Mark - Technical Support” mark.firestone@gossgraphic.co.uk

I like the sort_by syntax. How stable is 1.7.2?

Mark