JSFiddle - React, Tailwind, and code Playground

by riyadh

HTML

<script>

  var elem = document.getElementById('img1');
  if(elem.getAttribute('src') == "")
  {
    alert("empty");
  }
  else
  {
    alert("HAS a value");
  }
}
</script>
<img id="img1" src="img/res" class="img-thumbnail"/>
<button onClick="checkSRC();">CHECK SRC</button>