Optimize vue-cli first screen loading time
This time I will bring you the optimization of the first screen loading time of vue-cli. What are the precautions for optimizing the first screen loading time of vue-cli? The following is a practical case, let’s take a look.
Large file positioning
We can use the webpack visual plug-inWebpack Bundle Analyzer View the project js file size, and then have The purpose is to solve the js file that is too large.
Installation
npm install --save-dev webpack-bundle-analyzer
Set as follows in webpack, then npm run dev will be displayed on port 8888 by default .
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
module.exports = {
plugins: [
new BundleAnalyzerPlugin()
]
}JS files are loaded on demand
Without this setting, all JS files of the entire website will be loaded when the first screen of the project is loaded, so It is a good optimization method to disassemble the JS file and load the JS of a certain page when the page is clicked.
What is used here is the lazy loading of vue components. In router.js, do not use the import method to introduce components, use require.ensure.
import index from '@/components/index'
const index = r => require.ensure( [], () => r (require('@/components/index'),'index'))
//如果写了第二个参数，就打包到该`/JS/index` 的文件中。
//不写第二个参数，就直接打包在`/JS` 目录下。
const index = r => require.ensure( [], () => r (require('@/components/index')))When using cdn
, replace vue, vuex, vue-router, axios, etc. with domestic bootcdn and directly introduce them to In index.html in the root directory.
Add externals in webpack settings and ignore libraries that do not need to be packaged.
externals: {
'vue': 'Vue',
'vue-router': 'VueRouter',
'vuex': 'Vuex',
'axios': 'axios'
}Use cdn to import in index.html.
<script src="//cdn.bootcss.com/vue/2.2.5/vue.min.js"></script> <script src="//cdn.bootcss.com/vue-router/2.3.0/vue-router.min.js"></script> <script src="//cdn.bootcss.com/vuex/2.2.1/vuex.min.js"></script> <script src="//cdn.bootcss.com/axios/0.15.3/axios.min.js"></script>
Place the JS file at the end of the body
By default, in the built index.html, js is introduced in header.
Use the html-webpack-plugin plug-in and change the value of inject to body. You can put the js introduction at the end of the body.
var HtmlWebpackPlugin = require('html-webpack-plugin');
new HtmlWebpackPlugin({
inject: 'body',
})Compress the code and remove the console
Use the UglifyJsPlugin plug-in to compress the code and remove the console.
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false,
drop_console: true,
pure_funcs: ['console.log']
},
sourceMap: false
})Only these optimization methods have been found for the time being.
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!
Recommended reading:
Using slots/scoped slots in Vue in actual projects
##What are the precautions for using Dom in Angular2
The above is the detailed content of Optimize vue-cli first screen loading time. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1382
52
How to add functions to buttons for vue
Apr 08, 2025 am 08:51 AM
You can add a function to the Vue button by binding the button in the HTML template to a method. Define the method and write function logic in the Vue instance.
How to use bootstrap in vue
Apr 07, 2025 pm 11:33 PM
Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.
How to reference js file with vue.js
Apr 07, 2025 pm 11:27 PM
There are three ways to refer to JS files in Vue.js: directly specify the path using the <script> tag;; dynamic import using the mounted() lifecycle hook; and importing through the Vuex state management library.
How to use watch in vue
Apr 07, 2025 pm 11:36 PM
The watch option in Vue.js allows developers to listen for changes in specific data. When the data changes, watch triggers a callback function to perform update views or other tasks. Its configuration options include immediate, which specifies whether to execute a callback immediately, and deep, which specifies whether to recursively listen to changes to objects or arrays.
How to return to previous page by vue
Apr 07, 2025 pm 11:30 PM
Vue.js has four methods to return to the previous page: $router.go(-1)$router.back() uses <router-link to="/" component window.history.back(), and the method selection depends on the scene.
What does vue multi-page development mean?
Apr 07, 2025 pm 11:57 PM
Vue multi-page development is a way to build applications using the Vue.js framework, where the application is divided into separate pages: Code Maintenance: Splitting the application into multiple pages can make the code easier to manage and maintain. Modularity: Each page can be used as a separate module for easy reuse and replacement. Simple routing: Navigation between pages can be managed through simple routing configuration. SEO Optimization: Each page has its own URL, which helps SEO.
How to query the version of vue
Apr 07, 2025 pm 11:24 PM
You can query the Vue version by using Vue Devtools to view the Vue tab in the browser's console. Use npm to run the "npm list -g vue" command. Find the Vue item in the "dependencies" object of the package.json file. For Vue CLI projects, run the "vue --version" command. Check the version information in the <script> tag in the HTML file that refers to the Vue file.
How to use function intercept vue
Apr 08, 2025 am 06:51 AM
Function interception in Vue is a technique used to limit the number of times a function is called within a specified time period and prevent performance problems. The implementation method is: import the lodash library: import { debounce } from 'lodash'; Use the debounce function to create an intercept function: const debouncedFunction = debounce(() => { / Logical / }, 500); Call the intercept function, and the control function is called at most once in 500 milliseconds.
