How do Vuex getters and mutations work in Vue 3?

How do Vuex getters and mutations work in Vue 3?

In Vue 3, Vuex getters are used to access state data, while mutations are used to modify that state. Getters can be thought of as computed properties for the store.

Can you give me an example of a getter and a mutation?

Sure! A getter might look like this: getters: { completedTodos: state => state.todos.filter(todo => todo.completed) }. A mutation could be: mutations: { addTodo: (state, todo) => state.todos.push(todo) }.

How do I call a getter in a component?

You can call a getter in a component using computed properties. For example: computed: { completedTodos() { return this.$store.getters.completedTodos; } }.

What about actions? How do they fit in?

Actions in Vuex are used to handle asynchronous operations. They can commit mutations and call getters. You define them in the actions property of your store.