JSFiddle - React, Tailwind, and code Playground

by Luis Perez

HTML

<p id="testSubject">
  <strong>Ignore</strong> this content.
</p>

JavaScript

function getElementStartTag(element) {
  var html = element.outerHTML;
  var index = html.indexOf(">");
  var startTag = html.substring(0, index + 1);
  return startTag;
}

var element = document.getElementById("testSubject");
var startTag = getElementStartTag(element);
alert(startTag);