Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

numeral format for small numbers returns NaN

See original GitHub issue

For example numeral(0.0000000048).format('0') // NaN

Issue Analytics

State:
Created 6 years ago
Reactions:21
Comments:9 (3 by maintainers)

Top GitHub Comments

5reactions

vcarlcommented, Jul 25, 2018

Same issue, appears to be any number with 6 or more leading 0s.

numeral(.0000001).format('0')
> "NaN"
numeral(.000001).format('0')
> "0"
numeral(.0000005).format('0')
> "NaN"
numeral(.0000009).format('0')
> "NaN"
numeral(.0000010).format('0')
> "0"
numeral(.0000015).format('0')
> "0"

Incidentally, that appears to be when the chrome console starts displaying numbers in exponential form.

.000001
> 0.000001
.0000001
> 1e-7

0reactions

am05mhzcommented, Aug 26, 2022

since this repo is not updated anymore, and still have this bug, and if you still wish to use the latest version, you can do this work around:

function formatSmall(val, format) {
  if (val > 0 && val < 1e-6){
    // make the number 100 times greater, then just replace 0.0 with additional 2 zeroes (from 100)
    return numeral(val * 100).format(format).replace('0.0', '0.000');
  }
  return numeral(val).format(format);
}