Expression

Expression of the Event Read Node does the same thing as other node.

It directs the node where to go.

To create press + button.

The following window will appear:

Choose JS Library if you want to use any JS library in your code.

Choose Rule to show if you are going to use Code or Expression.

If you chose Code, then write JS code in the text editor.

Click Confirm button to save changes, then save the node.

Expression can be deleted as well.

Undo all the steps that you have done before i.e. delete JS Libraries, delete the code and press Confirm button, then save the node.