# App Interaction There are two ways to extend the standard components with interaction. If you are fluent in Javascript, you can develop many interaction control by classic javascript with many helper functions. If you are not "the hacker", you will find the existing GUI elements and controls for interaction helpful. Any interaction starts with "Event handlers", which you will find at almost each component. Based on possible user interactions, you can take events as triggers to realize a wise set of actions. In most of the cases you can combine multiple event triggers by adding Event handlers with different Actions configurations --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.openflower.org/build-applications/app-interaction.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.