Is it possible to access files in the uploader using JS when max_entries is greater than 1?

If max_entries is set to 1 the below works

const file =[0];

If max_entries is set to a value greater than 1 no matter what I try I can’t access the files in the uploader.

Does anyone know if its even possible or am I just wasting my time trying?
All I get is empty lists being returned.

I’m not sure the “correct” way to access them, but it looks like there are some files on this private undocumented field of the input element.

this.el.addEventListener("change", event => {
  const files =
  // [File, File, File]

You sir, are a legend. Never would have gotten that on my own.

May I ask how you figured it out? Or is it just something you knew as common knowledge?

The below works for getting the dimensions of the uploaded images, so assume I can do other stuff as well. Thank you very much for the help

myButton.addEventListener('change', (event) => {
      const files =;
      for (let i = 0; i < files.length; i++) {
        const file = files[i];
        const reader = new FileReader();
        reader.onload = function (e) {
          const img = new Image();
          img.onload = function () {
            console.log('Image Width:', img.width);
            console.log('Image Height:', img.height);
          img.src =;