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Joined: Apr 24, 2008
May 01, 2009 07:49:29
isNaN function only checks first letter in
.. but what suppose I have string like sa89bh.
is there any function for recognizing numbers in string ?
which are the built in functions in
SCJP 6 (88%), SCWCD 5 (78%), preparing for SCBCD
Joined: Nov 08, 2001
May 01, 2009 08:30:04
alert("a123a".match(/\d+/)) //123 alert("a123a321a".match(/\d+/)) //123 alert("a123a".match(/\d+/gi)) //123 alert("a123a321a".match(/\d+/gi)) //123,321
Author and ninkuma
Joined: Jan 10, 2002
May 01, 2009 08:31:24
If the first letter is not a numeral, that's all isNan needs to know to determine if it's a number of not.
If you are trying to find embedded numbers, why would you use isNan? I'd consider exploring regular expressions.
Edit: As Eric suggested while I was posting.
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I agree. Here's the link:
subject: isNaN function
Validating alpha and numeric chars in a form
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