👀 Views: 181 💬 Answers: 1 📅 Created: 2025-06-25

vue3 dynamic-components state-management Vue

I'm wondering if anyone has experience with I'm writing unit tests and I'm sure I'm missing something obvious here, but I'm encountering an issue with dynamically loading components in Vue 3 using `v-if`. I have a parent component that conditionally renders a child component based on a user selection. However, every time I change the selection, the child component seems to re-initialize, losing its local state. Here's a simplified version of my setup: ```vue <template> <div> <button @click="selectComponent('ComponentA')">Load Component A</button> <button @click="selectComponent('ComponentB')">Load Component B</button> <component :is="currentComponent" v-if="currentComponent"></component> </div> </template> <script> import ComponentA from './ComponentA.vue'; import ComponentB from './ComponentB.vue'; export default { data() { return { currentComponent: null, }; }, methods: { selectComponent(name) { this.currentComponent = name === 'ComponentA' ? ComponentA : ComponentB; }, }, }; </script> ``` In `ComponentA` and `ComponentB`, I've added some local state that is crucial for the component's functionality. For instance, `ComponentA` has a form input that should retain its value between renders. When I switch from `ComponentA` to `ComponentB` and back, the input field is reset, which is not the expected behavior. I’ve tried using `keep-alive` around the component like this: ```vue <keep-alive> <component :is="currentComponent" v-if="currentComponent"></component> </keep-alive> ``` However, this doesn’t seem to resolve the issue; I still experience the same reset behavior. I also looked into using `v-show` instead of `v-if`, but it doesn't solve the underlying state management issue. Is there a way to ensure that the component state persists when switching between dynamically loaded components? Any tips on best practices for maintaining local state in this scenario would be greatly appreciated. I'm working on a web app that needs to handle this. Any help would be greatly appreciated! I recently upgraded to Vue 3.11. I'm working with Vue in a Docker container on CentOS. For reference, this is a production CLI tool.