JSFiddle - React, Tailwind, and code Playground

by ciaoben

HTML

<script>
  function previewFile() {
  var reader  = new FileReader();
	var file    = document.querySelector('input[type=file]').files[0];
	console.log('ciaoo');
  console.log(file);
  
  reader.addEventListener("load", function () {
  	console.log(reader.result);
  }, false);
  
  if (file) {
  	console.log(reader.readAsDataURL(file));
  }
}
</script>

<input type="file" onchange="previewFile()"><br>