From: Analogy Analogy <analogy47@...>
Date: 2007-09-19T00:29:53+09:00
Subject: Re: converting text

Matthew Rudy wrote:
> John Joyce wrote:
>> On Sep 18, 2007, at 9:48 AM, Analogy Analogy wrote:
>> 
>>> [1.80%, 14.50%, ruby, 3.10%]
>> Those are not numbers.
>> They will be strings.
>> If you want numbers you'll need to do some work to first remove the %
>> characters and then convert them to_f (because they're conceptually
>> floats) After that Ruby will by default lop off the trailing 0's
>> But you won't have that % character on them.
>> If you need to use that format and use it a lot, create a class for
>> them.
> 
> I believe String#to_f lops off any trailing characters.
> 
> ie. "1.80%".to_f -> 1.8,
> it does on my windows install of 1.8.5 at least.


Sorry about that, true they are strings

["1.80%", "14.50%", "ruby", "3.10%"]

I want to truncate the "numbers" to one decimal place and still keep the 
percent symbol (i.e. 1.80% >> 1.8%). However, I don't want to change any 
letter/words (i.e. ruby) at all. I'm new to the language and not sure if 
there is an easy way to accomplish this.
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