Function isError

isError<T extends Error>(
value: unknown,
errorType?: new (...args: any[]) => T,
): value is T
Checks if a value is an instance of Error or a specific error type.
Type Parameters
- T extends Error
  A specific error type that extends the Error class.
Parameters
- value: unknown
  The value to check. It can be of any type.
- OptionalerrorType: new (...args: any[]) => T
  (Optional) A specific error type to validate against.
Returns value is T
Returns true if the value is an instance of Error or the specified error type, otherwise false.
Example
```
const error = new Error('An error occurred');
console.log(isError(error)); // true

const typeError = new TypeError('A type error occurred');
console.log(isError(typeError, TypeError)); // true
```
- Defined in utils/common.ts:65