timers

Use node:timers ↗ APIs to schedule functions to be executed later.

This includes setTimeout ↗ for calling a function after a delay, setInterval ↗ for calling a function repeatedly, and setImmediate ↗ for calling a function in the next iteration of the event loop.

index.jsjs

import timers from "node:timers";

export default {
	async fetch() {
		console.log("first");
		const { promise: promise1, resolve: resolve1 } = Promise.withResolvers();
		const { promise: promise2, resolve: resolve2 } = Promise.withResolvers();
		timers.setTimeout(() => {
			console.log("last");
			resolve1();
		}, 10);

		timers.setTimeout(() => {
			console.log("next");
			resolve2();
		});

		await Promise.all([promise1, promise2]);

		return new Response("ok");
	},
};

index.tsts

import timers from "node:timers";

export default {
  async fetch(): Promise<Response> {
    console.log("first");
    const { promise: promise1, resolve: resolve1 } = Promise.withResolvers<void>();
    const { promise: promise2, resolve: resolve2 } = Promise.withResolvers<void>();
    timers.setTimeout(() => {
      console.log("last");
      resolve1();
    }, 10);

    timers.setTimeout(() => {
      console.log("next");
      resolve2();
    });

    await Promise.all([promise1, promise2]);

    return new Response("ok");
  }
} satisfies ExportedHandler<Env>;

The full node:timers API is documented in the Node.js documentation for node:timers ↗.