processTasks.js

const processTasks = async (tasks, wait) => {
  let paused = false;    
  let kill = false;
  
  const pause =  () => paused = true;
  
  const resume = () => paused = false;

  const abort = () => kill = true;

  let interval;

  const process = () => {
    interval = setInterval(() => {
    let finishedProcessing = tasks.length <= 0
    if (finishedProcessing || kill === true)  {
      clearInterval(interval);
      return null;
    }
    if (paused === true) {
      return null;
    }
    else {
      let currentTask = tasks.shift();
      currentTask.call(this)
    }
    }, wait)
  }
  return { resume, pause, abort, process }
}

const hello1 = () => console.log('hello world 1');
const hello2 = () => console.log('hello world 2');

const run = async () => {
  const {resume, pause, abort, process} = await processTasks([hello1, hello2], 3000)
  await process()
}

run()