asyncNew

asyncNew.js

module.exports = (obj, ...args) => {
  return new Promise((res, rej) => {
    try {
      res(new obj(...args));
    } catch (e) {
      rej(e);
    }
  });
}

demo.js

const asyncNew = require('./asyncNew');

asyncNew(Set, [1,2,3,4,5,6,7,8]).then(set => {
  console.log(set);
});

I would like to see this in js as a part of syntax though:

// somewhere in an async function
let s = await async new Set([1,2,3,4,5,6,7,8]);
console.log(s);

// same as
(async new Set([1,2,3,4,5,6,7,8])).then(s => {
  console.log(s);
});

Well, await async new is verbose, but still a nice idea imo.