Is non-NaN number
Widely supported version of Number.isNaN. Checks whether a value is a number and that it's not NaN.
Also check out is-fin-num, which is similar but also rejects Infinity and -Infinity.
Installation
<pnpm|npm|yarn> add is-non-nan-num
Usage
import isNonNanNum from 'is-non-nan-num'
console.log(isNonNanNum(0)) // => true 🤙
console.log(isNonNanNum(Infinity)) // => true 🤙
console.log(isNonNanNum(NaN)) // => false ❌
console.log(isNonNanNum(0/0)) // => false ❌
console.log(isNonNanNum('1')) // => false ❌
console.log(isNonNanNum([])) // => false ❌See test/index.test.js for more use cases.
Browser support
isNonNanNum relies on isNaN (instead of Number.isNaN) so it should basically work everywhere.
| Browser | Minimum version |
|---|---|
| Firefox | >=1 |
| Safari | >=1 |
| Edge | >=12 |
| Chrome | >=1 |
| Internet Explorer (IE) | >=3 |