Copy to Clipboard

<!--
Via: http://stackoverflow.com/questions/400212/how-do-i-copy-to-the-clipboard-in-javascript
-->

<textarea class="js-copytextarea">Hello I'm some text</textarea>
<button class="js-textareacopybtn">Copy Text</button>


<script>

var copyTextareaBtn = document.querySelector('.js-textareacopybtn');

copyTextareaBtn.addEventListener('click', function(event) {
  var copyTextarea = document.querySelector('.js-copytextarea');
  copyTextarea.select();

  try {
    var successful = document.execCommand('copy');
    var msg = successful ? 'successful' : 'unsuccessful';
    console.log('Copying text command was ' + msg);
  } catch (err) {
    console.log('Oops, unable to copy');
  }
});

</script>