Add `ErrorEvent`

[Richienb]

What is the problem this feature will solve?

Emitting errors in userspace libraries that use EventTarget.
To emit an error, you would do:

eventTarget.dispatchEvent(new ErrorEvent('error', {error}));

Previous (now-"stale") filing: #47587

What is the feature you are proposing to solve the problem?

Implement the ErrorEvent class from browsers as a Node.js global.

What alternatives have you considered?

Emitting a CustomEvent with:

eventTarget.dispatchEvent(new CustomEvent('error', {detail: {error}}));

[KhafraDev]

undici implements ErrorEvent and exports it in its node bundle. Should be very easy to export it. https://github.com/nodejs/undici/blob/4154b96afd72e3bdf1edf651340ff81de8289541/index-fetch.js#L23

[Richienb]

Indeed, I expect that a future PR would look like #53355

[Lishkk]

Indeed, I expect that a future PR would look like #53355

[Lishkk]

undici implements ErrorEvent and exports it in its node bundle. Should be very easy to export it. https://github.com/nodejs/undici/blob/4154b96afd72e3bdf1edf651340ff81de8289541/index-fetch.js#L23