JSFiddle - React, Tailwind, and code Playground

HTML

<a id="myAnchor" title="smarty@pants.com" href="#">smarty@pants.com</a>

JavaScript

function myFunction() {
  var copyText = document.getElementById("myAnchor").title;
  document.addEventListener('copy', function(event) {
    event.clipboardData.setData('text/plain', copyText);
    event.preventDefault();
    document.removeEventListener('copy', handler, true);
  }, true);
  document.execCommand('copy');
  alert("Copied: " + copyText);
}
document.getElementById('myAnchor').addEventListener('click', myFunction);