https://johnkavanagh.co.uk/articles/creating-and-dispatching-custom-events-in-javascript/
Creating and Dispatching Custom Events in JavaScript | John Kavanagh
May 14, 2026 - Create and dispatch custom events in JavaScript with CustomEvent, detail payloads, bubbling, naming choices, cancellation, and component examples.
dispatching custom eventsjohn kavanaghcreatingjavascript