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Angelos Chalaris
2017-12-14 10:21:18 +02:00
parent 562cbdb26b
commit 9e63ad8975
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README.md
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@ -754,9 +754,10 @@ const uuid = _ =>
Use `!isNaN` in combination with `parseFloat()` to check if the argument is a number.
Use `isFinite()` to check if the number is finite.
Use `Number()` to check if the coercion holds.
```js
const validateNumber = n => !isNaN(parseFloat(n)) && isFinite(n);
const validateNumber = n => !isNaN(parseFloat(n)) && isFinite(n) && Number(n) == n;
// validateNumber('10') -> true
```