mapMutations

mapMutations is a helper function provided by Vuex, the official state management library for Vue.js. It simplifies the process of committing mutations from within Vue components. Mutations are the only way to actually change the state in a Vuex store.

Without mapMutations, you would typically commit a mutation by calling this.$store.commit('mutationName', payload). mapMutations automates this repetitive task. When used, it creates methods on your component that, when called, automatically commit the specified mutations to the Vuex store.

For example, if you have a mutation named 'increment', you can use mapMutations to create a local method named 'increment' in your component. When you call this.increment(), it will automatically execute this.$store.commit('increment'). This reduces boilerplate code and makes your components cleaner and more readable.

You can use mapMutations in the computed property of a Vue component. It takes an array of mutation names or an object mapping local method names to mutation names. This allows for flexible naming conventions and easy integration into your Vuex workflow. It's a key tool for managing state changes efficiently in Vue applications.