@esutils/deferred/examples/deferred-in-cjs.demo.js

The deferred library implemented in Typescript

const { Deferred } = require('@esutils/deferred');

async function demo() {
  const defer = new Deferred();
  setTimeout(() => {
    defer.resolve();
  });
  console.log(`Start ${Date.now()}`);
  await defer.promise;
  console.log(`End ${Date.now()}`);
}

demo();