防止Vue Multiple Select存储空数组

<template>
  <div>
    <select multiple v-model="selectedOptions">
      <!-- options here -->
    </select>
  </div>
</template>

<script>
export default {
  data() {
    return {
      selectedOptions: []
    };
  },
  computed: {
    filteredSelectedOptions() {
      return this.selectedOptions.filter(option => option !== "");
    }
  }
};
</script>

<template>
  <div>
    <select multiple v-model="selectedOptions">
      <!-- options here -->
    </select>
    <div>
      Selected Options: {{ filteredSelectedOptions }}
    </div>
  </div>
</template>