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From Beginner to Mastery: Vue and Axios Practical Development Guide
Introduction:
In modern web development, front-end and back-end separation and data interaction have become an essential part. As a popular front-end framework, Vue.js can help us build highly interactive single-page applications (SPA). Axios, as a powerful HTTP request library, provides us with convenient data request and response processing methods. In this article, we will learn how to use Vue and Axios for practical development.
<div id="app"> <p>{{ message }}</p> <button v-on:click="changeMessage">Change Message</button> </div> <script> var app = new Vue({ el: '#app', data: { message: 'Hello Vue!' }, methods: { changeMessage: function() { this.message = 'Hello World!'; } } }); </script>
In this example, we use Vue's data binding function to bind {{ message }}
to # On the message
attribute in ##data. When the button is clicked, the
changeMessage method is called to modify the value of
message, thereby updating the content on the page.
axios.get('/api/user') .then(function (response) { console.log(response.data); }) .catch(function (error) { console.log(error); });
/api/user interface , and handles the response result of a successful request through the
.then method, and handles the failure of the request through the
.catch method.
<template> <div> <ul> <li v-for="user in users" :key="user.id">{{ user.name }}</li> </ul> </div> </template> <script> import axios from 'axios'; export default { data() { return { users: [] }; }, mounted() { this.fetchUsers(); }, methods: { fetchUsers() { axios.get('/api/users') .then(response => { this.users = response.data; }) .catch(error => { console.log(error); }); } } }; </script>
v-for directive to traverse
users Array that renders each user's name onto the page. In the
mounted life cycle hook, call the
fetchUsers method, send a GET request to the
/api/users interface through Axios, and assign the returned user list Give
users array.
<template> <div> <h1>User List</h1> <user-list></user-list> </div> </template> <script> import UserList from './UserList.vue'; export default { components: { UserList } }; </script>In this sample code, we nest the user list component
9c54ab5321be8a18ad01dfb2d7966ec1b942dd8d386e8f45a306791ed46b1e4d in the root component.
Through the study of this article, we have learned the basic knowledge of Vue.js and the basic usage of Axios. And through an example, the combination of Vue and Axios was used to implement a simple user list display function. In actual development, the combination of Vue and Axios can help us quickly build highly interactive front-end applications and interact with back-end data. I hope this article will be helpful to your Vue and Axios development practice.
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