In Vue.js, $state refers to the state management library being used, such as Vuex or Vue.observable. The best way to use $state depends on the specific requirements and complexity of your application. Here are some general guidelines:
- Use Vuex for complex applications:
If your application is large and has multiple components sharing the same state, Vuex is a popular choice.
Define a central store using state, mutations, actions, and getters.
Access the state using mapState or computed properties in your components.
- Use Vue.observable for simpler applications:
For small to medium-sized applications with less complex state management requirements, Vue.observable is sufficient.
Create a reactive state object outside the component and import it where needed.
Access the state directly inside the component using this.$state.
- Decouple components from the state management library:
Make components unaware of the state management library being used.
Use injections, props, or events to pass data to components.
Remember that the "best" way to use $state depends on the specific needs of your application, and considering the project's size, complexity, maintainability, and personal/team preferences when choosing a state management approach is important.