Worker Threads docs example not working

[slonka]

• node v10.6.0
• Darwin 17.5.0
• Worker threads

Hello,

Running the example from https://nodejs.org/docs/v10.6.0/api/worker_threads.html#worker_threads_class_worker doesn't work. It fails with:

$ node --experimental-worker oncetest.js

events.js:167
      throw er; // Unhandled 'error' event
      ^
TypeError: require(...).once is not a function
    at Object.<anonymous> (/Users/krzysztof.slonka/projects/native-workers-playground/oncetest.js:13:29)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at MessagePort.port.on (internal/worker.js:425:27)
    at MessagePort.emit (events.js:182:13)
    at MessagePort.onmessage (internal/worker.js:66:8)
Emitted 'error' event at:
    at Worker.[kOnErrorMessage] (internal/worker.js:296:10)
    at Worker.[kOnMessage] (internal/worker.js:306:37)
    at MessagePort.Worker.(anonymous function).on (internal/worker.js:243:57)
    at MessagePort.emit (events.js:182:13)
    at MessagePort.onmessage (internal/worker.js:66:8)

I think it should be: parentPort.once right?

[addaleax]

I think it should be: parentPort.once right?

Yes – This has already been fixed in the documentation on master, it just needs to be released :)