JSFiddle - React, Tailwind, and code Playground

HTML

<form id="myform" action="" method="post" enctype="multipart/form-data">
    <input type="file" multiple name="files[]" />
    <input type="submit" name="submit" value="Submit">
</form>

<div class="filename"></div>

JavaScript

$("input:file").change(function () {
    var filenames = $.map(this.files, function (file) {
        return file.name;
    });
    $(".filename").html(filenames.join(', '));
});