vuex-class可以包裝vuex的寫法，使代碼簡化

Installation

$ npm install --save vuex-class

Example

import Vue from 'vue'
import Component from 'vue-class-component'
import {
  State,
  Getter,
  Action,
  Mutation,
  namespace
} from 'vuex-class'

const someModule = namespace('path/to/module')

@Component

export class MyComp extends Vue {

  @State('foo') stateFoo

  @State(state => state.bar) stateBar

  @Getter('foo') getterFoo

  @Action('foo') actionFoo

  @Mutation('foo') mutationFoo

  @someModule.Getter('foo') moduleGetterFoo

  // If the argument is omitted, use the property name

  // for each state/getter/action/mutation type

  @State foo

  @Getter bar

  @Action baz

  @Mutation qux

  created () {

    this.stateFoo // -> store.state.foo

    this.stateBar // -> store.state.bar

    this.getterFoo // -> store.getters.foo

    this.actionFoo({ value: true }) // -> store.dispatch('foo', { value: true })

    this.mutationFoo({ value: true }) // -> store.commit('foo', { value: true })

    this.moduleGetterFoo // -> store.getters['module/foo']

  }

}