[thelist] javascript numbers with decimals

Phil Turmel pturmel-webdev at turmel.org
Tue May 6 08:50:16 CDT 2008

Daniel Kessler wrote:
> I'm trying to ensure that all characters entered into a field are  
> numbers AND/OR a decimal.  Valid entries are similar to: 521,  
> 521.44, .44, 521.4    Invalid entries would be: $521, 52o
> I'm working from code that works in another library and I have it  
> removing all numbers, but it won't allow a decimal.  I'd like to  
> understand what the code is doing and how to also allow a decimal.   
> Here's the code that I have so far:
> regEx = /\D/g; // String to remove any characters that are not numbers	
> filteredField=field.value.replace(regEx,"") // text field numeric  
> characters only
> Clearly I need to update the first line to include the decimal, but  
> haven't yet figured out how.  I'll keep on it.
> Oh, and please cc me with any replies as I get these postings digest.
> thank you.

regEx = /[^0-9\.]/g;




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