How do I throw errors in JavaScript?

How do I throw errors in JavaScript?

In JavaScript, you can throw an error using the throw statement followed by an error object. For example: throw new Error('Something went wrong!');.

What types of errors can I throw?

You can throw built-in error types like Error, TypeError, ReferenceError, or create your own custom error types.

Can I catch the errors I throw?

Yes, you can catch thrown errors using a try...catch block. For example:

try {
    throw new Error('Oops!');
} catch (e) {
    console.error(e.message);
}

What happens if I don't catch an error?

If you don't catch an error, it will propagate up the call stack and can cause your program to terminate unexpectedly.