创建用于检查LocalStorage是否为空的全局函数- Vue.JS

// main.js

import Vue from 'vue';

Vue.prototype.$checkLocalStorage = function() {
  // 检查LocalStorage是否为空
  if (localStorage.length === 0) {
    return true;
  } else {
    return false;
  }
};

// YourComponent.vue

export default {
  mounted() {
    // 调用全局函数检查LocalStorage是否为空
    const isLocalStorageEmpty = this.$checkLocalStorage();

    if (isLocalStorageEmpty) {
      // 如果LocalStorage为空，执行相应的操作
      console.log('LocalStorage is empty');
    } else {
      // 如果LocalStorage不为空，执行相应的操作
      console.log('LocalStorage is not empty');
    }
  }
};