How to implement a breadcrumb navigation with dynamic links in Vue.js

Implementing breadcrumb navigation with dynamic links in Vue.js involves creating a reusable breadcrumb component and dynamically updating it based on the current route. Here's a step-by-step guide on how to achieve this:

1. Create a Breadcrumb Component: First, create a new Vue.js component for the breadcrumb navigation.

htmlCopy code
<!-- Breadcrumb.vue -->
<template>
  <nav aria-label="breadcrumb">
    <ol class="breadcrumb">
      <li class="breadcrumb-item">
        <router-link :to="{ path: '/' }">Home</router-link>
      </li>
      <li v-for="(crumb, index) in crumbs" :key="index" class="breadcrumb-item">
        <router-link :to="crumb.path">{{ crumb.label }}</router-link>
      </li>
    </ol>
  </nav>
</template>

<script>
export default {
  data() {
    return {
      crumbs: []
    };
  },
  watch: {
    '$route': 'generateCrumbs'
  },
  mounted() {
    this.generateCrumbs();
  },
  methods: {
    generateCrumbs() {
      const routes = this.$route.matched;
      this.crumbs = routes.map(route => {
        return {
          label: route.meta && route.meta.breadcrumb || route.name,
          path: route.path
        };
      });
    }
  }
}
</script>

<style>
/* Add your breadcrumb styles here */
</style>

2. Define Routes with Breadcrumbs: When defining your routes, make sure to include metadata for breadcrumbs.

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// router/index.js

import Vue from 'vue';
import Router from 'vue-router';
import Home from '@/views/Home.vue';
import About from '@/views/About.vue';
import Contact from '@/views/Contact.vue';

Vue.use(Router);

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home,
    meta: { breadcrumb: 'Home' }
  },
  {
    path: '/about',
    name: 'About',
    component: About,
    meta: { breadcrumb: 'About Us' }
  },
  {
    path: '/contact',
    name: 'Contact',
    component: Contact,
    meta: { breadcrumb: 'Contact Us' }
  }
];

export default new Router({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
});

3. Use Breadcrumb Component: Finally, include the breadcrumb component in your layout or any component where you want to display it.

htmlCopy code
<!-- Any.vue -->
<template>
  <div>
    <Breadcrumb />
    <!-- Your content goes here -->
  </div>
</template>

<script>
import Breadcrumb from '@/components/Breadcrumb.vue';

export default {
  components: {
    Breadcrumb
  }
}
</script>

This setup will dynamically generate breadcrumb links based on the route hierarchy and display them in your Vue.js application. Make sure to customize the styles according to your design requirements.