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Question

hello member Iam a beginer in VUE JS and i need some help, is have a sidebar admin template, which i added in my code, one of my code is a registration form and another code displays the data of registered users in a table, now i want to place them in this template if the admin clicks on the dashboard link button it should display a table and when he clicks on the Teams button it should display the register form.

here is my code for HomeView.vue

<template>
  <!--
    This example requires updating your template:

    ```
    <html class="h-full bg-white">
    <body class="h-full">
    ```
  -->
  <div>
    <TransitionRoot as="template" :show="sidebarOpen">
      <Dialog class="relative z-50 lg:hidden" @close="sidebarOpen = false">
        <TransitionChild as="template" enter="transition-opacity ease-linear duration-300" enter-from="opacity-0" enter-to="opacity-100" leave="transition-opacity ease-linear duration-300" leave-from="opacity-100" leave-to="opacity-0">
          <div class="fixed inset-0 bg-gray-900/80" />
        </TransitionChild>

        <div class="fixed inset-0 flex">
          <TransitionChild as="template" enter="transition ease-in-out duration-300 transform" enter-from="-translate-x-full" enter-to="translate-x-0" leave="transition ease-in-out duration-300 transform" leave-from="translate-x-0" leave-to="-translate-x-full">
            <DialogPanel class="relative mr-16 flex w-full max-w-xs flex-1">
              <TransitionChild as="template" enter="ease-in-out duration-300" enter-from="opacity-0" enter-to="opacity-100" leave="ease-in-out duration-300" leave-from="opacity-100" leave-to="opacity-0">
                <div class="absolute left-full top-0 flex w-16 justify-center pt-5">
                  <button type="button" class="-m-2.5 p-2.5" @click="sidebarOpen = false">
                    <span class="sr-only">Close sidebar</span>
                    <XMarkIcon class="h-6 w-6 text-white" aria-hidden="true" />
                  </button>
                </div>
              </TransitionChild>
              <!-- Sidebar component, swap this element with another sidebar if you like -->
              <div class="flex grow flex-col gap-y-5 overflow-y-auto bg-indigo-600 px-6 pb-4">
                <div class="flex h-16 shrink-0 items-center">
                  <img class="h-8 w-auto" src="https://tailwindui.com/img/logos/mark.svg?color=white" alt="Your Company" />
                </div>
                <nav class="flex flex-1 flex-col">
                  <ul role="list" class="flex flex-1 flex-col gap-y-7">
                    <li>
                      <ul role="list" class="-mx-2 space-y-1">
                        <li v-for="item in navigation" :key="item.name">
                          <a :href="item.href" :class="[item.current ? 'bg-indigo-700 text-white' : 'text-indigo-200 hover:text-white hover:bg-indigo-700', 'group flex gap-x-3 rounded-md p-2 text-sm leading-6 font-semibold']">
                            <component :is="item.icon" :class="[item.current ? 'text-white' : 'text-indigo-200 group-hover:text-white', 'h-6 w-6 shrink-0']" aria-hidden="true" />
                            {{ item.name }}
                          </a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <div class="text-xs font-semibold leading-6 text-indigo-200">Your teams</div>
                      <ul role="list" class="-mx-2 mt-2 space-y-1">
                        <li v-for="team in teams" :key="team.name">
                          <a :href="team.href" :class="[team.current ? 'bg-indigo-700 text-white' : 'text-indigo-200 hover:text-white hover:bg-indigo-700', 'group flex gap-x-3 rounded-md p-2 text-sm leading-6 font-semibold']">
                            <span class="flex h-6 w-6 shrink-0 items-center justify-center rounded-lg border border-indigo-400 bg-indigo-500 text-[0.625rem] font-medium text-white">{{ team.initial }}</span>
                            <span class="truncate">{{ team.name }}</span>
                          </a>
                        </li>
                      </ul>
                    </li>
                    <li class="mt-auto">
                      <a href="#" class="group -mx-2 flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-indigo-200 hover:bg-indigo-700 hover:text-white">
                        <Cog6ToothIcon class="h-6 w-6 shrink-0 text-indigo-200 group-hover:text-white" aria-hidden="true" />
                        Settings
                      </a>
                    </li>
                  </ul>
                </nav>
              </div>
            </DialogPanel>
          </TransitionChild>
        </div>
      </Dialog>
    </TransitionRoot>

    <!-- Static sidebar for desktop -->
    <div class="hidden lg:fixed lg:inset-y-0 lg:z-50 lg:flex lg:w-72 lg:flex-col">
      <!-- Sidebar component, swap this element with another sidebar if you like -->
      <div class="flex grow flex-col gap-y-5 overflow-y-auto bg-indigo-600 px-6 pb-4">
        <div class="flex h-16 shrink-0 items-center">
          <img class="h-8 w-auto" src="https://tailwindui.com/img/logos/mark.svg?color=white" alt="Your Company" />
        </div>
        <nav class="flex flex-1 flex-col">
          <ul role="list" class="flex flex-1 flex-col gap-y-7">
            <li>
              <ul role="list" class="-mx-2 space-y-1">
                <li v-for="item in navigation" :key="item.name">
                  <a :href="item.href" :class="[item.current ? 'bg-indigo-700 text-white' : 'text-indigo-200 hover:text-white hover:bg-indigo-700', 'group flex gap-x-3 rounded-md p-2 text-sm leading-6 font-semibold']">
                    <component :is="item.icon" :class="[item.current ? 'text-white' : 'text-indigo-200 group-hover:text-white', 'h-6 w-6 shrink-0']" aria-hidden="true" />
                    {{ item.name }}
                  </a>
                </li>
              </ul>
            </li>
            <li>
              <div class="text-xs font-semibold leading-6 text-indigo-200">Your teams</div>
              <ul role="list" class="-mx-2 mt-2 space-y-1">
                <li v-for="team in teams" :key="team.name">
                  <a :href="team.href" :class="[team.current ? 'bg-indigo-700 text-white' : 'text-indigo-200 hover:text-white hover:bg-indigo-700', 'group flex gap-x-3 rounded-md p-2 text-sm leading-6 font-semibold']">
                    <span class="flex h-6 w-6 shrink-0 items-center justify-center rounded-lg border border-indigo-400 bg-indigo-500 text-[0.625rem] font-medium text-white">{{ team.initial }}</span>
                    <span class="truncate">{{ team.name }}</span>
                  </a>
                </li>
              </ul>
            </li>
            <li class="mt-auto">
              <a href="#" class="group -mx-2 flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-indigo-200 hover:bg-indigo-700 hover:text-white">
                <Cog6ToothIcon class="h-6 w-6 shrink-0 text-indigo-200 group-hover:text-white" aria-hidden="true" />
                Settings
              </a>
            </li>
          </ul>
        </nav>
      </div>
    </div>

    <div class="lg:pl-72">
      <div class="sticky top-0 z-40 flex h-16 shrink-0 items-center gap-x-4 border-b border-gray-200 bg-white px-4 shadow-sm sm:gap-x-6 sm:px-6 lg:px-8">
        <button type="button" class="-m-2.5 p-2.5 text-gray-700 lg:hidden" @click="sidebarOpen = true">
          <span class="sr-only">Open sidebar</span>
          <Bars3Icon class="h-6 w-6" aria-hidden="true" />
        </button>

        <!-- Separator -->
        <div class="h-6 w-px bg-gray-900/10 lg:hidden" aria-hidden="true" />

        <div class="flex flex-1 gap-x-4 self-stretch lg:gap-x-6">
          <form class="relative flex flex-1" action="#" method="GET">
            <label for="search-field" class="sr-only">Search</label>
            <MagnifyingGlassIcon class="pointer-events-none absolute inset-y-0 left-0 h-full w-5 text-gray-400" aria-hidden="true" />
            <input id="search-field" class="block h-full w-full border-0 py-0 pl-8 pr-0 text-gray-900 placeholder:text-gray-400 focus:ring-0 sm:text-sm" placeholder="Search..." type="search" name="search" />
          </form>
          <div class="flex items-center gap-x-4 lg:gap-x-6">
            <button type="button" class="-m-2.5 p-2.5 text-gray-400 hover:text-gray-500">
              <span class="sr-only">View notifications</span>
              <BellIcon class="h-6 w-6" aria-hidden="true" />
            </button>

            <!-- Separator -->
            <div class="hidden lg:block lg:h-6 lg:w-px lg:bg-gray-900/10" aria-hidden="true" />

            <!-- Profile dropdown -->
            <Menu as="div" class="relative">
              <MenuButton class="-m-1.5 flex items-center p-1.5">
                <span class="sr-only">Open user menu</span>
                <img class="h-8 w-8 rounded-full bg-gray-50" src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80" alt="" />
                <span class="hidden lg:flex lg:items-center">
                  <span class="ml-4 text-sm font-semibold leading-6 text-gray-900" aria-hidden="true">Tom Cook</span>
                  <ChevronDownIcon class="ml-2 h-5 w-5 text-gray-400" aria-hidden="true" />
                </span>
              </MenuButton>
              <transition enter-active-class="transition ease-out duration-100" enter-from-class="transform opacity-0 scale-95" enter-to-class="transform opacity-100 scale-100" leave-active-class="transition ease-in duration-75" leave-from-class="transform opacity-100 scale-100" leave-to-class="transform opacity-0 scale-95">
                <MenuItems class="absolute right-0 z-10 mt-2.5 w-32 origin-top-right rounded-md bg-white py-2 shadow-lg ring-1 ring-gray-900/5 focus:outline-none">
                  <MenuItem v-for="item in userNavigation" :key="item.name" v-slot="{ active }">
                    <a :href="item.href" :class="[active ? 'bg-gray-50' : '', 'block px-3 py-1 text-sm leading-6 text-gray-900']">{{ item.name }}</a>
                  </MenuItem>
                </MenuItems>
              </transition>
            </Menu>
          </div>
        </div>
      </div>

      <main class="py-10">
        <div class="px-4 sm:px-6 lg:px-8">
          <!-- Your content -->
        

        </div>
      </main>
    </div>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import {
  Dialog,
  DialogPanel,
  Menu,
  MenuButton,
  MenuItem,
  MenuItems,
  TransitionChild,
  TransitionRoot,
} from '@headlessui/vue'
import {
  Bars3Icon,
  BellIcon,
  CalendarIcon,
  ChartPieIcon,
  Cog6ToothIcon,
  DocumentDuplicateIcon,
  FolderIcon,
  HomeIcon,
  UsersIcon,
  XMarkIcon,
} from '@heroicons/vue/24/outline'
import { ChevronDownIcon, MagnifyingGlassIcon } from '@heroicons/vue/20/solid'

const navigation = [
  { name: 'Dashboard', href: 'users', icon: HomeIcon, current: true },
  { name: 'Team', href: 'register', icon: UsersIcon, current: false },
  { name: 'Projects', href: '#', icon: FolderIcon, current: false },
  { name: 'Calendar', href: '#', icon: CalendarIcon, current: false },
  { name: 'Documents', href: '#', icon: DocumentDuplicateIcon, current: false },
  { name: 'Reports', href: '#', icon: ChartPieIcon, current: false },
]
const teams = [
  { id: 1, name: 'Heroicons', href: '#', initial: 'H', current: false },
  { id: 2, name: 'Tailwind Labs', href: '#', initial: 'T', current: false },
  { id: 3, name: 'Workcation', href: '#', initial: 'W', current: false },
]
const userNavigation = [
  { name: 'Your profile', href: '#' },
  { name: 'Sign out', href: '#' },
]

const sidebarOpen = ref(false)
</script>

And here is my code for App.vue

<template>
<main>
 
  <RouterView />
 


</main>
</template>

<script>
import { RouterView } from "vue-router";
import "./assets/tailwind.css";
export default {
  components: {
    RouterView,

  
  }
};
</script>

and here is my register.vue

<template>
  <div class="container mx-auto">
    <h1 class="text-3xl font-bold mb-8 text-center">Registration Form</h1>

    <form name="reg" class="max-w-md mx-auto">
      <div class="mb-4">
        <input v-model="Newuser.id" type="text" class="form-input rounded-md shadow-sm" name="userid" placeholder="User ID" required>
      </div>
      <div class="mb-4">
        <input v-model="Newuser.user_name" type="text" class="form-input rounded-md shadow-sm" name="username" placeholder="User Name" required>
      </div>
      <div class="mb-4">
        <input v-model="Newuser.user_email" type="email" class="form-input rounded-md shadow-sm" name="useremail" placeholder="User Email" required>
      </div>
      <button type="submit" @click.prevent="addUser" class="btn bg-purple-500 hover:bg-purple-700 text-white font-bold py-2 px-4 rounded-full w-full">Register User</button>
    </form>
  </div>
</template>

<script>
export default {
  components: {
  },
  data() {
    return {
      RegisteredUser: [],
      Newuser: {
        id: "",
        user_name: "",
        user_email: "",
        userid: " ",
      }
    };
  },
  methods: {
    addUser() {
      let userid = document.forms['reg']["userid"].value;
      let username = document.forms['reg']['username'].value;
      let useremail = document.forms['reg']['useremail'].value;
      const EmailPattern = /^[^s@]+@[^s@]+.[^s@]+$/;

      if(userid == ""){
        alert('please enter your id....');
        return false;
      } 
      else if(username == ""){
        alert('please enter your username...');
        return false;
      }
      else if(useremail == "" ){
        alert('please enter your email.....')
        return false;
      }
      else if(!EmailPattern.test(useremail)){
        alert('please enter a valid email');
        return false;
      }

      if (this.UserIdExists(userid, this.RegisteredUser)) {
        alert("User ID already taken....");
        return false;
      }

      if (this.Newuser.id.trim() !== "" && this.Newuser.user_name.trim() !== "" && this.Newuser.user_email.trim() !== "") {
          const user_data = this.RegisteredUser.push({
            id: this.Newuser.id,
            user_name: this.Newuser.user_name,
            user_email: this.Newuser.user_email,
            isFavorite: false, // Initialize isFavorite property
          });
          console.log('Adding user:', this.Newuser);
          console.log(user_data)
          this.Newuser.id = "";
          this.Newuser.user_name = "";
          this.Newuser.user_email = "";
        }
    },
    toggleFavorite(index) {
        this.RegisteredUser[index].isFavorite = !this.RegisteredUser[index].isFavorite;
      },
      // Check if the user id already exists...
    UserIdExists(existId, RegisteredUser) {
      return RegisteredUser.some(user => user.id === existId);
    },
  


  },

created() {
      // Retrieving data from sessionStorage when the component is created
      const str = sessionStorage.getItem('registeredUsers');
      if (str) {
        this.RegisteredUser = JSON.parse(str);
        console.log(this.RegisteredUser);
      }
    },

    watch: {
      RegisteredUser: {
        handler(newVal) {
          // Saving data to sessionStorage whenever RegisteredUser changes
          sessionStorage.setItem('registeredUsers', JSON.stringify(newVal));
        },
        deep: true
      }
    }
}
</script>

here is my UserTable.vue code

<template>
  <div class="container mx-auto flex flex-col h-full">
    <h1 class="text-3xl font-bold mt-7 mb-4 text-center">Registered Users</h1>

    <div class="flex-grow overflow-x-auto">
      <table class="w-full bg-white shadow-md rounded-lg overflow-hidden">
        <thead class="bg-purple-700 text-white">
          <tr>
            <th class="px-3 py-2">User ID</th>
            <th class="px-3 py-2">User Name</th>
            <th class="px-3 py-2">User Email</th>
            <th class="px3 py-2">Action</th>
          </tr>
        </thead>
        <tbody class="text-gray-700">
          <tr v-for="(user, index) in users" :key="index" class="bg-gray-100">
            <td class="border px-3 py-1">{{ user.id }}</td>
            <td class="border px-3 py-1">{{ user.user_name }}</td>
            <td class="border px-3 py-1">{{ user.user_email }}</td>
          </tr>
        </tbody>
      </table>
    </div>

  </div>
</template>



<script>
export default {
  data() {
    return {
      users: [] // Initialize users array to store retrieved data
    };
  },
  mounted() {
    // Retrieve data from sessionStorage when the component is mounted
    const storedData = sessionStorage.getItem('registeredUsers');
    if (storedData) {
      // Parse the stored data and assign it to the users array
      this.users = JSON.parse(storedData);
    }
  }
}
</script>

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