promiseHooks.onBefore(before)

• before <Function> 在 promise 继续执行之前调用的 before 回调。

  \before <Function> The before callback to call before a promise continuation executes.

• 返回:<Function> 调用以停止钩子。

  \Returns: <Function> Call to stop the hook.

before 钩子必须是普通函数。提供异步函数会抛出异常,因为它会产生无限的微任务循环。

\The before hook must be a plain function. Providing an async function will throw as it would produce an infinite microtask loop.

import { promiseHooks } from 'node:v8';
const stop = promiseHooks.onBefore((promise) => {});const { promiseHooks } = require('node:v8');
const stop = promiseHooks.onBefore((promise) => {});拷贝