queue.js

// files to queue
let filesToProcess = [
  'file1',
  'file2',
  'file3',
  'file4',
  'file5',
  'file6',
  'file7',
  'file8',
  'file9',
  'file10',
];

// simulated queue that runs after 500ms unless the queue is cleared by user
let queue = setInterval(
  function () { 
    if (filesToProcess.length) {
      // TODO: some actual compression happens here...
      console.log(filesToProcess[0]);
      filesToProcess.shift();
    }
  }, 
  500
);

function clearQueue() {
  filesToProcess = [];

  // this could be problematic if your users try again
  // but you could always create a new interval
  clearInterval(queue); 
}

// simulate canceling the queue after 3 seconds
setTimeout(() => {
  clearQueue();
  
  // may not need this I just want my process to end when prototyping with node
  process.exit();
}, 3000);