worker_threads.workerData

一个任意的 JavaScript 值，包含传递给此线程的 Worker 构造函数的数据的克隆。

【An arbitrary JavaScript value that contains a clone of the data passed to this thread's Worker constructor.】

根据 HTML 结构化克隆算法，这些数据被克隆，就好像使用了 postMessage()。

【The data is cloned as if using postMessage(), according to the HTML structured clone algorithm.】

import { Worker, isMainThread, workerData } from 'node:worker_threads';

if (isMainThread) {
  const worker = new Worker(new URL(import.meta.url), { workerData: 'Hello, world!' });
} else {
  console.log(workerData);  // Prints 'Hello, world!'.
}'use strict';

const { Worker, isMainThread, workerData } = require('node:worker_threads');

if (isMainThread) {
  const worker = new Worker(__filename, { workerData: 'Hello, world!' });
} else {
  console.log(workerData);  // Prints 'Hello, world!'.
}拷贝