JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <input type="file" id="multiplefiles" name="uploadedfile[]" multiple>
    <input type="button" id="upload" value="Upload" />
</div>

JavaScript

$(document).on("click", "#upload", function() {
    var filelist = document.getElementById("multiplefiles").files || [];
    for (var i = 0; i < filelist.length; i++) {
        console.log('found file ' + i + ' = ' + filelist[i].name);
    }
});