timersPromises.setTimeout([delay[, value[, options]]])

• delay <number> 在履行 promise 之前等待的毫秒数。 默认值: 1。
• value <any> 履行 promise 使用的值。
• options <Object>
  • ref <boolean> 设置为 false 以指示调度的 Timeout 不应要求 Node.js 事件循环保持活动状态。 默认值: true。
  • signal <AbortSignal> 可选的 AbortSignal，可用于取消调度的 Timeout。

import {
  setTimeout,
} from 'timers/promises';

const res = await setTimeout(100, 'result');

console.log(res);  // 打印 'result'const {
  setTimeout,
} = require('timers/promises');

setTimeout(100, 'result').then((res) => {
  console.log(res);  // 打印 'result'
});

• delay <number> The number of milliseconds to wait before fulfilling the promise. Default: 1.
• value <any> A value with which the promise is fulfilled.
• options <Object>
  • ref <boolean> Set to false to indicate that the scheduled Timeout should not require the Node.js event loop to remain active. Default: true.
  • signal <AbortSignal> An optional AbortSignal that can be used to cancel the scheduled Timeout.

import {
  setTimeout,
} from 'timers/promises';

const res = await setTimeout(100, 'result');

console.log(res);  // Prints 'result'const {
  setTimeout,
} = require('timers/promises');

setTimeout(100, 'result').then((res) => {
  console.log(res);  // Prints 'result'
});