isValid(id)
Quickly check whether an ID number is valid.
Signature
typescript
function isValid(id: string): boolean;Parameters
| Parameter | Type | Description |
|---|---|---|
| id | string | ID number |
Returns
Returns true if the ID number format is valid, false otherwise.
Live Demo
Example
typescript
import { isValid } from 'china-id-card';
isValid('622922197808118498'); // → true
isValid('123456789012345678'); // → false