Acrobat formula if number is 0 then dont calculate

[Anita5E1E]

Its been a while since i have been into Java. I want to calculate a percentage but if the first number is zero then dont calculate.  This is what I have so far:

var a=this.getField("CT-TPE");
var b=this.getField("CT-TPV");
var c=this.getField("PER.0.0");
c.value=(a.value/b.value);

Any help would be so appreciated.

[Asim123]

You can't divide with zero. Also it's javascript not java. 

[Anita5E1E]

Thank you for the clarification. The form will have a zero at times, so how do i create a formula that says if it a zero then ignore?

[Anita5E1E]

Do you know how i could do it if null?

[try67 · Accepted solution]

Use this code, instead:

var a = Number(this.getField("CT-TPE").valueAsString);
var b = Number(this.getField("CT-TPV").valueAsString);
if (b==0) event.value = "";
else event.value=a/b;

[Anita5E1E]

That did it.  Thank you so much!!!