JSFiddle - React, Tailwind, and code Playground

HTML

<input id="fld" type="file" name="image" id="file">

<input id="btn" type="submit" value="Upload / Edit picture" name="upload_picture" id="upload_picture" class="btn" />
<br>
<br>
<div id="remove_button">Remove</div>

JavaScript

$("#btn").toggle(false);

$("#fld").change(function(){
  if($(this).val() != "")
  {
  $("#btn").toggle();
  } else{
   $("#btn").toggle();
  }
  });