What are the following options that belong to the JavaScript UI framework?
Which of the following decorators can be used to manage the state of variables in custom components?
What development tools do programmers do not need to install when developing HarmonyOS mobile apps?
The user and provider of the service card do not require permanent operation, and when it is necessary to add, remove, or request to update the card, the card management service will pull up the card provider to obtain the card information.