vue installation settings

Vue is one of the modern front-end frameworks that allows developers to build interactive user interfaces that can be well organized, displayed, and interacted with, and are suitable for various types of applications and projects. In this article, we will briefly introduce the installation and setup of Vue.

1. Install Vue

1. Use CDN

Vue provides CDN to allow developers to directly reference the Vue library in HTML. Simply copy the following code into your HTML file:

<script src="https://cdn.jsdelivr.net/npm/vue"></script>

NOTE: While this method is simple, it is not recommended in a production environment as it may negatively impact page performance and loading speed .

2. Use NPM

Using NPM to install Vue is one of the most common methods. The following are the installation steps:

a. Open the terminal and make sure you are already in Node.js is installed on the computer.

b. In the terminal, enter the following command to install Vue:

npm install vue

c. After the installation is completed, you can start using Vue. You can reference the Vue library in the HTML file as follows:

<script src="./node_modules/vue/dist/vue.js"></script>

3. Use Vue CLI

Vue CLI is the command line tool officially provided by Vue, which can help you quickly create Vue application and provides a variety of features and tools out of the box. Here are the steps to install Vue using the Vue CLI:

a. Open a terminal and make sure Node.js is installed on your computer.

b. In the terminal, enter the following command to install Vue CLI:

npm install -g @vue/cli

c. After the installation is completed, you can use Vue CLI to create a new Vue application, as follows Display:

vue create my-app

d. You then need to select a preset and wait for Vue CLI to automatically download and install all necessary dependencies.

e. After the installation is complete, you can switch to the newly created application folder and run the following command to start the application:

npm run serve

2. Set up Vue

1 .Introduce Vue

If you choose to use the CDN method to reference Vue, just add the following code to your HTML file:

<script src="https://cdn.jsdelivr.net/npm/vue"></script>

If you installed Vue using NPM, Then in your JavaScript file, you need to add the following code at the beginning of the file:

import Vue from 'vue'

2. Create a Vue instance

Once you have successfully introduced Vue, you can create a Vue instance. You need to pass an options object to the Vue constructor, which contains various options and configuration information for the Vue instance.

The following is a basic Vue instance example:

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

In the above example, we bind the Vue instance to the HTML element with the id value "app" and define a Data attribute named "message".

3. Display data

Vue connects models and views through data binding. You can use Vue's template syntax to display data in HTML templates. Use double curly braces "{{}}" to interpolate bound data properties.

For example, in the above Vue instance, we can display the value of the "message" attribute in the HTML template:

<div id="app">
  {{ message }}
</div>

When the Vue instance is rendered, Vue will be based on the value specified in the template The data attributes automatically update the DOM. In the above example, the value of the "message" attribute is "Hello, Vue!", so the rendering result will be:

<div id="app">
  Hello, Vue!
</div>

Summary

This article briefly introduces the installation of Vue and settings. You can use CDN, NPM or Vue CLI to install Vue and create a Vue instance to display data and update the DOM. Vue is an excellent front-end framework with good documentation and community, suitable for projects of all sizes and types. Hopefully this article helps you get started with Vue and start building great front-end applications.

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