Copy to clipboard using native js api

copy.js

function copy_to_clipboard(text) {
  var el = document.createElement('textarea');
  el.style.position = 'absolute';
  el.style.left = '-9999px';
  el.setAttribute('readonly', '');
  el.value = text;

  document.body.appendChild(el);
  el.select();
  var success = document.execCommand('copy');
  document.body.removeChild(el);
  return success;
}