sample.js

// Original supposedly "correct" way: https://flaviocopes.com/javascript-async-await-array-map/

// NOPE! This is correct:

// Function that returns a promise
const functionWithPromise = item => { 
  return Promise.resolve('ok');
};

// Prefer functions without side effects. Much easier to understand, unit test, re-use and optimize (eg. three shaking).
const getData = async (list) => {

  // Only reason to have another "async" wrapper is if functionWithPromise() might throw something and you want to catch it
  // BUT you can inline it, too.
  return await Promise.all(list.map( async item => await functionWithPromise(item)) );
  
};

// 
const LIST = [1, 2, 3, 4, 5] //...an array filled with values

getData(LIST).then(data => {
  console.log(data);
});