javascript - How to use the state obtained by ...mapGetters and ...mapState to operate in methods?

Question

Can it only be displayed on the page? I know that I can use this.$store.state to obtain these states for operation

Answer 1

 ...mapState({
        a: function (state) {
          return state.A
        },
        b: function (state) {
          return state.b
        }
      })

Just access this.a this.b directly in other methods

Answer 2

For example, ...mapState(['changePrePosition'])Just use this.changePrePosition()

Answer 3

...mapState(['value'])

Use this.value to get the value, but modifying the value of state requires mutations