Async version of setTimeout

timeout.js

export class Timeout {
  constructor() {
    this.timeoutId = 0;
  }

  clear() {
    window.clearTimeout(this.timeoutId);
    this.timeoutId = 0;
  }

  isSet() {
    return this.timeoutId > 0;
  }

  async set(delay) {
    return new Promise((resolve) => {
      this.timeoutId = window.setTimeout(() => {
        this.timeoutId = 0;
        resolve();
      }, delay);
    });
  }
}

async function test() {
  const timeout = new Timeout();
  const printDelayed = async (message, delay) => {
    await timeout.set(delay);
    console.log(message);
  };
  printDelayed(
    "This does not print, because the timeout will be cleared before.",
    1000
  );
  console.log("Timeout is set: " + timeout.isSet());
  timeout.clear();
  console.log("Timeout is set: " + timeout.isSet());
  await printDelayed("This prints after one second.", 1000);
}

test();