Vuex store.commit vs commit

I have seen examples with vuex like this shown below. Is there a difference here between commit('increment') and store.commit('increment')? Could we use this.$store.commit('increment')?

const store = Vuex.createStore({
  data() {
    return {
      count: 0
    }
  },
  mutations: {
    increment(state) {
      state.count += 1
    }
  },
  actions: {
    increment({ commit }) {
      // pay attention here in both examples
      commit('increment')
    }
  }
})

and like this

const store = Vuex.createStore({
  data() {
    return {
      count: 0
    }
  },
  mutations: {
    increment(state) {
      state.count += 1
    }
  },
  actions: {
    increment({ commit }) {
      store.commit('increment')
      // is there a difference with store.commit or just commit? Could this.$store.commit be used?
    }
  }
})

No difference I’m aware of, but I’d be inclined to use the exposed function from the action parameter as this is the intended purpose.

The docs show both ways with store.commit('increment') and just commit('increment'), I‘m still not understanding what the subtlety is

I did finally figure it out so I’ll post the solution in case anyone else wonders this

const store = Vuex.createStore({
  data() {
    return {
      count: 0
    }
  },
  mutations: {
    increment(state) {
      state.count += 1
    }
  },
  actions: {
    increment({ commit }) {
      // this is ok
      commit('increment')
      // this is ok, store refers to the const variable
      store.commit('increment')
      // this === store is true so this also works
      this.commit('increment')
      // throws an error
      this.$store.commit('increment')
    },
    alternateIncrement(context) {
      // here is another way without destructuring context param
      context.commit('increment')
      // throws an error
      store.context.commit('increment')
      // throws an error
      this.context.commit('increment')
    }
  }
})

One more side note for anyone that went through the docs and might be confused if they are new to this is that

this.$store.commit('increment')

is to be used inside components

If you had an app

<div id="app">
  <div>{{ count }}</div>
  <!-- in templates -->
  <div>{{ $store.state.count }}</div>
</div>
Vue.createApp({
  data() {},
  computed: {
    count() {
      // this is the preferred way
      this.$store.state.count
      /**
      * in vue docs you might see 'store.state.count'
      * 'store' refers to what is passed to Vue.createApp({ ... }).use(store)
      */
      store.state.count
    }
  }
}).use(store).mount('#app')