Serially execute a chunk of parallel tasks one after another (without caring about return value)

yes.js

const chunk = (arr, n) =>
  Array.from({ length: Math.ceil(arr.length / n) }, (v, i) =>
    // eslint-disable-next-line no-mixed-operators
    arr.slice(i * n, i * n + n)
  );

const data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

chunk(data, 2)
  // Turn each chunk into a function that will await all of its parts to resolve before finishing
  .map(chunk => () => Promise.all(chunk.map(part => Promise.resolve(part))))
  // Execute each chunk serially (hopefully) by chaining it to the previous one
  // Note: doesn't persist previous return value by the end. Could be done but I'm lazy.
  .reduce((chain, current) => chain.then(current), Promise.resolve());