Expressions: Leading zeros and decimal places.

[Navarro Parker]

Maybe we should start over with the original question: How would you get leading zeroes *and* and fixed decimals in one expression?

So I could get counters to display values like : “000126.5700” or “005.00”

[Dan Ebberts]

Something like this should work:


num = thisComp.layer("Deep Lime Green Solid 1").effect("Slider Control")("Slider").value;
numDigits = 5;
numDec = 2;

s = "" + Math.floor(num);
while(s.length < numDigits) s = "0" + s;
if (numDec > 0) s += "." + num.toFixed(numDec).split(".")[1];
s


Dan

[Navarro Parker]

Works perfectly! It’s the best expression of 2013! 😉

[Navarro Parker]

Hi Dan!

I ran into a tiny problem with this expression. It doesn’t respect the number of leading zeros with negative numbers.

[Dan Ebberts]

Try it this way:

num = thisComp.layer(“Deep Lime Green Solid 1”).effect(“Slider Control”)(“Slider”).value;
neg = num < 0;
num = Math.abs(num);
numDigits = 5;
numDec = 2;
s = “” + Math.floor(num);
while(s.length < numDigits) s = “0” + s;
if (numDec > 0) s += “.” + num.toFixed(numDec).split(“.”)[1];
if (neg) s = “-” + s;
s

Dan

[Navarro Parker]

Yup, that does it! Thank you!

[Nelson Rayner]

Hey guys,

Just wondering if anyone knows a way to also add commas into the equation? So you’ve got a Dollar sign, leading zeros, and commas?

Thanks!

[Quba Michalski]

I have created this “little behemoth” called UberNumber to do just that (everything). Check it out at: https://qubahq.com/2014/06/ubernumber/

Quba Michalski
qubahq.com