Function assertIsUndefined

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