<template lang="html">
<div>
  moduleA: {{moduleA}}
  moduleB: {{moduleB}}
</div>
</template>

<script>
export default {
  computed: {
    moduleA(){
      return this.$store.state.a.module
    },
    moduleB(){
      return this.$store.state.b.module
    }
  }
}
</script>

<style lang="css">
</style>