我有一個表格

<form>
<div class="form-group">
  <label for="email">Email address</label>
  <input v-model="email" for="email" type="email" class="form-control" placeholder="Enter email" required>
</div>
<div class="form-group">
  <label for="name">Name</label>
  <input v-model="name" for="name" type="text" class="form-control" placeholder="Name" required>
</div>
<div class="form-group">
  <label for="password">Password</label>
  <input v-model="password" type="password" class="form-control" for="password" placeholder="Password" required>
</div>
<div class="form-group">
  <label for="Confirm">Confirm Password</label>
  <input v-model="confirmPassword" type="password" class="form-control" for="Confirm" placeholder="Confirm Password" required>
</div>
<div class="form-group form-check">
  <input type="checkbox" class="form-check-input" id="exampleCheck1" required>
  <label class="form-check-label" for="exampleCheck1">I agree to the terms and conditions</label>
</div>
<button v-on:click="Submit" type="submit" class="btn btn-primary">Submit</button>

data(){
    return{
      email: undefined,
      password: undefined,
      confirmPassword: undefined,
      name: undefined
    }
}

目前是這樣判斷

methods:{
Submit(){
    var allFill = this.email !== undefined && this.password !== undefined && this.confirmPassword !== undefined && this.name !== undefined;
 }
}

請問是否有優雅的方式,能判斷所有欄位都被填寫了?