Worker should indicate it inherits from EventEmitter

[arei]

• Version: 10..
• Platform: Documentation
• Subsystem: worker_threads

The documentation for Worker class should indicate that it inherits from EventEmitter. It's apparent that it does so reading the documentation, but it does not specifically say so. Other classes like ChildProcess do indicate this.

[tuxedotu]

I could do that

[lpinca]

Fixed by 9fc0b7b