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Validating numeric fields

Hi,

Is there a pre-defined jscript function that I can use to ensure that the user enters a numeric value for a particular field?

I know in Java you can use isDigit() - though this doesn't seem to be available to javascript.

Any ideas?

Andy

xabi

There is no function in javascript, so here is how I do it:

// Regular expression version
function is_integer(number) {
var reInteger = /^\d+$/
return reInteger.test(number)
}

// Standard version
function is_integer(number) {
for (i=0; i<number.length; i++) if ((number.charAt(i)<0) || (number.charAt(i)>9)) return false
return true
}

xabi

xabi

Sorry, i did a typo:
Here goe sthe correct one:

function is_integer(number) {
for (i=0; i<number.length; i++) if ((number.charAt(i)<"0") || (number.charAt(i)>"9")) return false
return true
}

xabi

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Paul Maker

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amtate

ASKER

Thanks !....