worker.getEnvironmentData(key)
-
key<any> 任何可以用作 <Map> 键的任意、可克隆的 JavaScript 值。¥
key<any> Any arbitrary, cloneable JavaScript value that can be used as a <Map> key. -
返回：<any>
¥Returns: <any>
在工作线程中，worker.getEnvironmentData() 返回传给衍生线程的 worker.setEnvironmentData() 的数据的克隆。每个新的 Worker 都会自动接收到自己的环境数据的副本。
¥Within a worker thread, worker.getEnvironmentData() returns a clone
of data passed to the spawning thread's worker.setEnvironmentData().
Every new Worker receives its own copy of the environment data
automatically.
const {
Worker,
isMainThread,
setEnvironmentData,
getEnvironmentData,
} = require('node:worker_threads');
if (isMainThread) {
setEnvironmentData('Hello', 'World!');
const worker = new Worker(__filename);
} else {
console.log(getEnvironmentData('Hello')); // Prints 'World!'.
}