Function assertIsNumber

assertIsNumber(input: unknown, error?: string | Error): asserts input is number
Assert that input is a number.
Parameters
- input: unknown
- error: string | Error = 'input is not a number'
Returns asserts input is number
Example
```
assertIsNumber(42); // does not throw
assertIsNumber('42'); // throws TypeError: input is not a number
```
- Defined in src/assertion/assertIsNumber.ts:14