How do I use IDOM to preventDefault?

[Archmonger]

Does IDOM override href's click events to intercept URL routing, or will I need to manually implement this for SPA purposes?

If so, is it a generic selection across all href elements, or only on href components directly rendered by IDOM?

[rmorshea]

Instead of just assigning a plain function to an event like onClick you can add a decorator to the event handler that encodes extra information like prevent_default or stop_propagation.

@idom.component
def MyComponent():
    @idom.event(prevent_default=True)
    def handle_click(event):
        ...
    return idom.html.href({"onClick": handle_click}, ...)