Generate promises from an array, run the promises in sequence, starting the next one once the previous finish

main.js

async function call(value) {
  const label = `Promise ${value}`;

  console.time(label);
  return new Promise((resolve) => {
    setTimeout(() => {
      console.timeEnd(label);
      resolve();
    }, Math.floor(9 * Math.random() + 1) * 1000);
  });
}

[1, 2, 3].reduce(async (promise, item) => {
  return promise.then(() => call(item));
}, Promise.resolve());

// Output:
// Promise 1: 7.009s
// Promise 2: 9.002s
// Promise 3: 2.013s