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Front-end development guide based on Vue and Axios to help you get started quickly

PHPzOriginal: 2023-07-17 16:48:071219browse

Front-end development is one of the most popular positions in the Internet industry today. As a front-end developer, using the right tools and frameworks can improve work efficiency and development quality. In today's front-end development, Vue and Axios are two popular tools.

Vue.js is a popular JavaScript front-end framework that helps us build complex and efficient user interfaces by providing an easy-to-use API and component system. Axios is a powerful HTTP request library for sending asynchronous HTTP requests in browsers and Node.js.

In this article, we will explore how to use Vue and Axios for front-end development, with some example code to help you deepen your understanding.

1. Installation
First, we need to add Vue and Axios to our project. You can install it through the package management tool npm or yarn.

npm installation command:

npm install vue axios

yarn installation command:

yarn add vue axios

2. Initialize Vue application
Before we start using Vue and Axios, we need to initialize one Vue application. Add the following code to your HTML page:

<!DOCTYPE html>
<html>
<head>
  <title>Vue Axios Example</title>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
</head>
<body>
  <div id="app">
    <h1>{{ message }}</h1>
  </div>
  <script src="app.js"></script>
</body>
</html>

Then, create the app.js file in the same directory and add the following code to it:

var app = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!'
  }
})

In this way, we will initialize Created a simple Vue application and bound the message to the title of the HTML page.

3. Send HTTP request
First, we need to import the Axios module. Add the following code to the app.js file:

import Axios from 'axios';

var app = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!',
    data: null
  },
  mounted() {
    this.getData();
  },
  methods: {
    async getData() {
      try {
        const response = await Axios.get('https://api.example.com/data');
        this.data = response.data;
      } catch (error) {
        console.error(error);
      }
    }
  }
});

In this code, we use Axios to send a GET request and bind the returned data to the data attribute of the Vue application.

4. Display data
We have successfully obtained the data, and now we need to display the data on our page. Add the following code to the HTML:

<div id="app">
  <h1>{{ message }}</h1>
  <div v-if="data">
    <ul>
      <li v-for="item in data" :key="item.id">{{ item.name }}</li>
    </ul>
  </div>
  <div v-else>
    Loading...
  </div>
</div>

In this code, we use Vue's conditional rendering (v-if and v-else) to display data or loading prompts based on whether the value of data is empty. .

5. Run the application
Now, we have completed writing the code. Open your browser and visit our application. You will see the page title is "Hello Vue!" and a loading prompt. Then, Axios will send a GET request to obtain the data and display it on the page.

6. Summary
Through the study of this article, you should already understand how to use Vue and Axios for front-end development. Vue provides powerful view layer management capabilities, while Axios provides simple and powerful HTTP request functions.

Of course, there are more usages and functions of Vue and Axios waiting for you to discover and learn. I hope this article can help you quickly get started with Vue and Axios and play an outstanding role in front-end development.

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