Error() constructor

When Error is used like a function, that is without new, it will return an Error object. Therefore, a mere call to Error will produce the same output that constructing an Error object via the new keyword would.

It is sometimes useful to catch an error and re-throw it with a new message. In this case you should pass the original error into the constructor for the new Error, as shown.

For a more detailed example see Error > Differentiate between similar errors.

Syntax example: new Error()