How to Update Textarea with CKEditor Changes

To update the textarea with id 'pdescription' every time the CKEditor changes, you can use the following code:

var pdescription;

ClassicEditor
    .create( document.querySelector( '#pdescription' ) )
    .then( editor => {
        pdescription = editor;

        pdescription.model.document.on('change:data', () => {
            document.querySelector('#pdescription').value = pdescription.getData();
        });
    } )
    .catch( err => {
        console.error( err.stack );
    } );

This code listens for the 'change:data' event on the CKEditor instance's model.document object. Whenever this event is triggered (i.e., the CKEditor content changes), it updates the value of the textarea with id 'pdescription' with the new content using the getData() method of the CKEditor instance.