node.js 線程調試配置

{

// 使用 IntelliSense 瞭解相關屬性。

// 懸停以查看現有屬性的描述。

// 欲瞭解更多信息，請訪問: https://go.microsoft.com/fwlink/?linkid=830387

"version": "0.2.0",

"configurations": [

{

"type": "node",

"request": "launch",

"name": "Launch Program",

"runtimeExecutable":"d:\\node10\\node",

"runtimeArgs":["--experimental-worker"],

"program": "${workspaceFolder}/a.js"

}

]

}

const assert = require('assert');
const {
  Worker, MessageChannel, MessagePort, isMainThread, parentPort
} = require('worker_threads');
if (isMainThread) {
  const worker = new Worker(__filename);
  const subChannel = new MessageChannel();
  worker.postMessage({ hereIsYourPort: subChannel.port1 }, [subChannel.port1]);
  subChannel.port2.on('message', (value) => {
    console.log('received:', value);
  });
} else {
  parentPort.once('message', (value) => {
    assert(value.hereIsYourPort instanceof MessagePort);
    value.hereIsYourPort.postMessage('the worker is sending this');
    value.hereIsYourPort.close();
  });
}