From: Eric Hodel <drbrain@...7.net>
Date: 2006-11-17T16:39:57+09:00
Subject: Re: case vs using if question

On Nov 16, 2006, at 11:07 PM, Scott Comboni wrote:
> I need to parse the syntax on files based on a two charcter code  
> such as
> PC which would return a value like this PC = Postcard  I have many  
> many
> codes and Im very new to Ruby and not sure what the best way to do  
> this
> is and performance considerations?

Benchmark and profile to find performance considerations.

> So would multiple if statements be a better ruby way then using  
> case or does it mater?

Use multiple if statements when the comparisons are different.

Use a case statement when one side of the comparison is always the  
same or when exploiting #=== will make your code simpler.

But see also the Hash solution for when you're using a case for a  
map.  That's even cleaner and simpler than a big case statement.

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
This implementation is HODEL-HASH-9600 compliant

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