Vue.js does not support the keep-alive feature

Question

Vue.js does not support the keep-alive feature

My current Vue.js version is 3 and I have successfully implemented two different methods to use keep-alive in my application.

Method 1:

<template>
  <div id="nav" classs="container is-max-desktop"></div>
<keep-alive>
  <router-view />
</keep-alive>
</template>

<style>
@import "~bulma/css/bulma.css";
</style>

Method 2:

import { createRouter, createWebHistory } from "vue-router";
import Index from "../views/Index.vue";
import Create from "../views/Create.vue";
import Edit from "../views/Edit.vue";

const routes = [
  {
    name: "Index",
    path: "/",
    component: Index,
    meta: { KeepAlive: true },
  },
  {
    name: "Edit",
    path: "/edit/:id",
    component: Edit,
    meta: { KeepAlive: true },
  },
  {
    name: "Create",
    path: "/create",
    component: Create,
    meta: { KeepAlive: true },
  },
  {
    path: "/about",
    name: "About",
    // route level code-splitting
    // this generates a separate chunk (about.[hash].js) for this route
    // which is lazy-loaded when the route is visited.
    component: () =>
      import(/* webpackChunkName: "about" */ "../views/About.vue"),
  },
];

const router = createRouter({
  history: createWebHistory(process.env.BASE_URL),
  routes,
});

export default router;

I have various filters applied on my page, but they seem to disappear when I navigate back to that page. Can anyone help me solve this issue? Any assistance would be greatly appreciated. Thank you.

javascript vue.js dynamic keep-alive switching

Answer 1

Answer №1

By utilizing the keep alive feature, you can cache components during dynamic switching to ensure that data is retained within each component when switching occurs. Implement the following code for seamless integration:

MainComponent.vue

<script>
import ComponentA from './ComponentA.vue'
import ComponentB from './ComponentB.vue'
  
export default {
  components: { ComponentA, ComponentB },
  data() {
    return {
      current: 'ComponentA'
    }
  }
}
</script>

<template>
  <div class="demo">
    <label><input type="radio" v-model="current" value="ComponentA" /> A</label>
    <label><input type="radio" v-model="current" value="ComponentB" /> B</label>
    <KeepAlive>
      <component :is="current"></component>
    </KeepAlive>
  </div>
</template>

ComponentA.vue

<script>
export default {
  data() {
    return {
      count: 0
    }
  }
}
</script>

<template>
  <div>
    <p>Current component: A</p>
    <span>count: {{ count }}</span>
    <button @click="count++">+</button>
  </div>

ComponentB.vue

<script>
export default {
  data() {
    return {
      message: ''
    }
  }
}
</script>


<template>
  <div>
    <p>Current component: B</p>
    <span>Message: {{ message }}</span>
    <input v-model="message">
  </div>

Answer 2

By utilizing the keep alive feature, you can cache components during dynamic switching to ensure that data is retained within each component when switching occurs. Implement the following code for seamless integration:

MainComponent.vue

<script>
import ComponentA from './ComponentA.vue'
import ComponentB from './ComponentB.vue'
  
export default {
  components: { ComponentA, ComponentB },
  data() {
    return {
      current: 'ComponentA'
    }
  }
}
</script>

<template>
  <div class="demo">
    <label><input type="radio" v-model="current" value="ComponentA" /> A</label>
    <label><input type="radio" v-model="current" value="ComponentB" /> B</label>
    <KeepAlive>
      <component :is="current"></component>
    </KeepAlive>
  </div>
</template>

ComponentA.vue

<script>
export default {
  data() {
    return {
      count: 0
    }
  }
}
</script>

<template>
  <div>
    <p>Current component: A</p>
    <span>count: {{ count }}</span>
    <button @click="count++">+</button>
  </div>

ComponentB.vue

<script>
export default {
  data() {
    return {
      message: ''
    }
  }
}
</script>


<template>
  <div>
    <p>Current component: B</p>
    <span>Message: {{ message }}</span>
    <input v-model="message">
  </div>

Vue.js does not support the keep-alive feature

Answer №1

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