JSFiddle - React, Tailwind, and code Playground
HTML
<div id="example">Div here.
<script>
var myDiv = this.parentNode.id;
alert(myDiv);
</script>
</div>
<div id="example">Div here.
<script>
var myDiv = this.parentNode.id;
alert(myDiv);
</script>
</div>