I’m using the following code provided by Reinmar here to create multiple instances of CKEditor5. However in Firefox Inspector I get the error: CKEditorError: can't convert null to object

Perhaps this is related to adding the CKEditor object to the constant ‘editors’ array, does the ‘editors’ array need to be defined as a object? Any ideas please?

$(document).ready(function() {

const editors = {};

function createEditor( elementId ) {
    return ClassicEditor
        .create( document.getElementById( elementId ) )
        .then( editor => {
            editors[ elementId ] = editor;
        } )
        .catch( err => console.error( err.stack ) );
}

createEditor( 'editor1' );
createEditor( 'editor2' );

});

And the html:

<form method="post">
    <input type="hidden" name="editor" value="1">
    <textarea name="editor1" id="editor1" rows="10" cols="80">
        Some text
    </textarea>
    <input type="submit" value="Save" class="btn btn-primary">
</form>
<form method="post">
    <input type="hidden" name="editor" value="1">
    <textarea name="editor2" id="editor2" rows="10" cols="80">
        Some text
    </textarea>
    <input type="submit" value="Save" class="btn btn-primary">
</form>