Javascript; converting string to number

05-27-2012, 11:29 PM

PeetSoft

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Join Date: Jun 2003

Location: HHW - the Netherlands

Posts: 184

Javascript; converting string to number

I want to change the forecolor of my temperature display according to outside temp.

The original value of the temp ia a string, e.g "15,4" (checked with typeOf)
I used the replace function to change the comma to a decimal "15.4"

Whatever I try, I can't get the string to be a number

If I use

document.getElementById("outtemp").value; - it gives me Undefined
document.getElementById("outtemp").innerHTML; - it gives me string value

parseInt, parseFloat and multiplying by 1 keeps on NaN-ning me.

How to get an integer value out of string value?

t.i.a.

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07-25-2012, 09:22 PM

MikeJ

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Join Date: Sep 2002

Location: Austin, Texas

Posts: 6,747

Have you tried explicitly converting the element to a string before trying a parseInt?

Code:

var myInt = parseInt(document.getElementById('outtemp').innerHTML.toString());

If that doesn't work, what browser are you using?

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