Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node

Question

Im trying to add a new text to a existing in the simplest way posible, in my case I can only modify the script that is inside a paragraph element but Im getting this error Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node. How can I make this works in the shortest code possible?

<!-- Many elements above this -->
<p>
  This a part of the text
  <script>
    document.currentScript.parentNode.appendChild(" and this is the new text added");
  </script>
</p>
<!-- Many elements under this -->

Answer 1

You should create the text as textNode using createTextNode() method like,

const textNode = document.createTextNode(" and this is the new text added");

and pass the node created as parameter to appendChild like,

document.currentScript.parentNode.appendChild(textNode);

And the modified snippet as sollows,

<!-- Many elements above this -->
<p>
  This a part of the text
  <script>
    const textNode = document.createTextNode(" and this is the new text added");
    document.currentScript.parentNode.appendChild(textNode);
  </script>
</p>
<!-- Many elements under this -->