There are prefix add-on on many component such as button, but there isn't such a eventlistener, there is a just sufix listener.
Hi @AnsonHwang, you're right that there is only a suffix icon press event listener and not a prefix event listener. Also, that event listener is only on mobile, as the web app doesn't have either. We currently have feature requests in already for these features, but I went ahead and linked your post to add some visibility to it.
A current workaround would be to use the icon component and add event listeners to it. Hope that helps!