p-map + p-queue

[mahnunchik]

Hi @sindresorhus

Maybe I haven't catch right module but it would be great to have mix of p-map + p-queue to be able to run the same promise-returning & async function on inputs queue.

For example:

const queue = new Queue((item) => {
  return got('https://sindresorhus.com/?unicorn=' + item);
}, { concurrency: 2 });

(async () => {
  await queue.add('🦄');
  await queue.add(async () => '🦄');
  await queue.add('🐴');
  await queue.add( '🐙');
})();

[sindresorhus]

You don't need p-map for this. Just define a tiny helper method:

const {default: PQueue} = require('p-queue');
const got = require('got');

const queue = new PQueue({concurrency: 2});

const add = item => queue.add(() => got('https://sindresorhus.com', {searchParams: {unicorn: item}}));

(async () => {
	await add('🦄');
	await add(async () => '🦄');
	await add('🐴');
	await add( '🐙');
})();

If you just need to limit concurrency and don't need a queue, check out https://github.com/sindresorhus/p-limit