php/www/vue/src/components/order.vue

<template lang="html">
<div class="order">
  <h2>order</h2>
  <h2>{{userId}}</h2>
  <navigation></navigation>
</div>
</template>

<script>
export default {
  data () {
    return {
      userId: this.$store.state.user.userId
    }
  }
}
</script>

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