Defines a callback function that receives changes to the state of a dashboard page's environment.
This function can only be used in page code files for dashboard pages created in the Wix Editor or with Wix Blocks.
Use the data passed to observeState()'s callback function to dynamically update a dashboard page's content.
The callback function passed to observeState() is triggered when the dashboard page is initialized and every time it's updated.
observer(pageParams: object, environmentState: EnvironmentState): void Callback function for receiving state data.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.