Vue3+TS+Vite development skills: how to debug and monitor performance on mobile terminals

Vue3 TS Vite development skills: How to conduct mobile debugging and performance monitoring

The development of mobile applications has attracted more and more attention, in order to provide a better user experience and performance, developers need to debug and monitor performance. In the development environment of Vue3, TypeScript and Vite, we can use some techniques to debug and monitor performance on the mobile terminal. This article will introduce several methods and provide detailed code examples.

1. Debugging with Vue Devtools

Vue Devtools is a debugging tool provided for Vue.js developers, which can view and debug Vue components in the browser. In Vue3, Vue Devtools supports debugging using the Composition API by default.

First, we need to install Vue Devtools in the project. Run the following command in the terminal:

npm install @vue/devtools

Then, import and use Vue Devtools in Vue’s entry file (main.ts):

import { createApp } from 'vue'
import App from './App.vue'

// 导入Vue Devtools
import { createDevtools } from '@vue/devtools'

const app = createApp(App)

// 创建Vue Devtools实例
const devtools = createDevtools(app)

app.mount('#app')

Now, we can open Vue in the browser Devtools, and view and debug our Vue components.

2. Use Chrome DevTools for mobile debugging

For mobile debugging, we can use Chrome DevTools to simulate the debugging environment of the mobile device. The following are some common debugging tips:

• Use the device mode of Chrome Developer Tools: Open the Chrome Developer Tools, in the top toolbar, click the Switch Device button to select a different device mode Perform debugging. We can simulate different device types, sizes and network conditions.
• Use Chrome remote debugging: Open the Chrome browser on your mobile device and enter chrome://inspect. Connect to the debugging tools and we can view and debug the page on the device in Chrome developer tools.
• Use the remote debugging mode of Chrome DevTools: Install the @vue/devtools plugin on your mobile device, and then enable the remote debugging mode via:

import { createApp } from 'vue'
import App from './App.vue'

// 导入Vue Devtools
import { createDevtools } from '@vue/devtools'

const app = createApp(App)

// 创建Vue Devtools实例，并将其连接到远程调试工具
const devtools = createDevtools(app, {
  host: 'localhost',
  port: 8098
})

app.mount('#app')

3. Use performance monitoring tools

In mobile applications, performance monitoring is very important. We can use some performance monitoring tools to track and analyze application performance data. The following are some common performance monitoring tools:

• Lighthouse: Lighthouse is an open source tool developed by Google that can analyze data on application performance, accessibility, best practices, etc. We can use Lighthouse to evaluate and improve application performance metrics.
• Web Vitals: Web vitals are a set of metrics used to measure and track web page performance. These metrics include page load time, interactivity, visual stability, and more. We can use Web Vitals to monitor application performance and take timely measures to improve performance.
• Performance API: Performance API is a set of APIs provided by web browsers for monitoring and measuring performance data of web pages. We can use the Performance API to collect and analyze application performance indicators, such as page loading time, resource loading time, etc.

In the development environment of Vue3 TypeScript Vite, we can combine these performance monitoring tools to perform performance monitoring of mobile development.

import { createApp } from 'vue'
import App from './App.vue'

// 导入Vue Devtools和性能监控工具
import { createDevtools } from '@vue/devtools'
import { reportWebVitals } from 'web-vitals'

const app = createApp(App)

// 创建Vue Devtools实例
const devtools = createDevtools(app)

app.mount('#app')

// 监控应用的性能指标
reportWebVitals(console.log)

In the above code example, we imported the Vue Devtools and web-vitals libraries and created a Vue Devtools instance when the app starts. Then, we use the reportWebVitals function to monitor and output the application's performance metrics.

Summary

This article introduces how to conduct mobile debugging and performance monitoring in the development environment of Vue3 TypeScript Vite. We use Vue Devtools and Chrome DevTools to debug mobile applications and introduce some common performance monitoring tools and techniques. I hope this article can help you with your debugging and performance optimization work in mobile development.

The above is the content of this article, I hope it will be helpful to you. thanks for reading!

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