


Detailed tutorial on React introducing container components and display components to Vue
This article mainly introduces the detailed tutorial of React introducing container components and display components into Vue. The article introduces the reasons for using container components in great detail. Friends who need it can refer to it
If you If you have used Redux to develop React, you must have heard of container components (Smart/Container Components) or presentation components (Dumb/Presentational Components). What are the benefits of this division? Can we learn from this division to write Vue code? ? This article will demonstrate why we should adopt this pattern and how to write both components in Vue.
Why use container components?
If we want to write a component to display comments, before we have heard of container components, our The code is generally written like this:
components/CommentList.vue
<template> <ul> <li v-for="comment in comments" :key="comment.id" > {{comment.body}}—{{comment.author}} </li> </ul> </template> <script> export default { name: 'CommentList', computed: { comments () { return this.$store.state.comments } }, mounted () { this.$store.dispatch('fetchComments') } } </script>
store/index.js
import Vue from 'vue'; import Vuex from 'vuex';
Vue.use(Vuex);
const store = new Vuex.Store({ state: { comments: [], }, mutations: { setComments(state, comments) { state.comments = comments; }, }, actions: { fetchComments({commit}) { setTimeout(() => { commit('setComments', [ { body: '霸气侧漏', author: '雷叔', id: 1123, }, { body: '机智如我', author: '蕾妹', id: 1124, }, ]); }); }, }, });
export default store;
It seems natural to write this way. Are there any problems or areas that can be optimized?
There is an obvious problem. Since CommentList.vue is coupled with the Vuex store of the project, it is difficult to reuse it without the current project.
Is there a better way to organize components that can solve this problem? It’s time to understand the concept of container components in the React community.
What is a container component
In React.js Conf 2015, there is a topic of Making your app fast with high-performance components introduced Container component.
The container component is specifically responsible for communicating with the store and passing data to the ordinary display component through props. If the display component wants to initiate an update of data, it also passes it through the container component through props. The callback function tells the store.
Since the display component is no longer directly coupled with the store, but defines the data and methods it needs through the props interface, the reusability of the display component will be higher.
The difference between container components and presentation components
Display component |
Container component | |
---|---|---|
Describe how to display (skeleton, Style) | Describe how to run (data acquisition, status update) | |
No | Yes | |
props | Listen to store state | |
Call from props Callback function | Dispatches actions to the store |
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