@spa-tools/utilities
ensureNum()
The ensureNum<F>() function checks if the given value is a valid number or can be
parsed to a valid number and if so returns number; otherwise returns fallback value.
The generic F type is used to define the type of the fallback value.
Usage
import { ensureNum } from '@spa-tools/utilities';
const validNum = ensureNum('123', 0);
console.log(validNum);
// --> 123
const invalidNum = ensureNum('abc', -1);
console.log(invalidNum);
// --> -1
Arguments
| Name | Type | Description |
|---|---|---|
value | unknown | The value to parse as number |
fallback | F | The value that will be returned if value cannot be parsed an a number |
Returns
Returns parsed number or the fallback value of type F.