What are Vuex getters and how do they work?

What are Vuex getters and how do they work?

Vuex getters are functions that allow you to access and compute derived state from the Vuex store. They are similar to computed properties in Vue components.

Can you give me an example of a Vuex getter?

Sure! For instance, if you have a state property called 'items', a getter could be defined to return the total count of items: totalItems(state) { return state.items.length; }.

How do I use a getter in a component?

You can use a getter in a component by mapping it to your computed properties using mapGetters. For example: computed: { ...mapGetters(['totalItems']) }.

Are there any performance considerations with using getters?

Yes, getters are cached based on their dependencies, so they only re-evaluate when their dependencies change, which helps with performance.