Function isPostalCode

isPostalCode(target: string, locale: string): Result<boolean | undefined>
Checks whether the target string is a valid postal code

Example
```
expect(isPostalCode().value).toBeTruthy()
```
Parameters
- target: string
  
  The target string
- locale: string
  
  The locale
Returns Result<boolean | undefined>
- Defined in validators/isPostalCode.ts:93

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