The difference between Vue3 and Vue2: faster response speed
Jul 09, 2023 pm 01:22 PM
The difference between Vue3 and Vue2: faster response speed
Vue is a popular JavaScript framework for building user interfaces. Its smoothness and responsiveness are very important to developers and users. Based on Vue2, Vue3 has made some improvements to provide faster response speed. This article will explore the performance improvements of Vue3 over Vue2 and provide some code examples to illustrate these improvements.
- Rewriting of the responsive system:
Vue3 rewrites its responsive system and uses the Proxy proxy object instead of Vue2's Object.defineProperty(). This new responsive system makes Vue3 more efficient when accessing properties, thereby improving response speed.
The following is a code example using Vue3's responsive data:
import { reactive, watchEffect } from 'vue';
const app = reactive({
count: 0
});
watchEffect(() => {
console.log(app.count);
});
app.count++; // 輸出 1- Static Tree Hoisting:
Vue3 uses static tree hoisting With this technology, static nodes are processed in the compilation stage and efficient rendering code is generated. This way, Vue3 can calculate differences and update faster when dealing with dynamic nodes.
The following is a code example using Vue3's static tree promotion:
import { h } from 'vue';
const app = {
render() {
return h('div', { class: 'container' }, [
h('h1', 'Hello Vue3'),
h('p', 'Welcome to Vue3')
]);
}
};- Compiler optimization:
Vue3's compiler has been optimized, and the generated code More streamlined and efficient. For example, Vue3 enables static markup when compiling templates, thus avoiding unnecessary re-rendering.
The following is a code example using Vue3's compilation optimization:
import { createApp, h } from 'vue';
const app = createApp({
template: `
<div class="container">
<h1>Hello Vue3</h1>
<p>Welcome to Vue3</p>
</div>
`
});
app.mount('#app');Summary:
Vue3 rewrites the responsive system, introduces static tree lifting and performs compiler optimization and other means to provide faster response speed. Developers can take advantage of Vue3's new features to improve application performance and provide a better user experience. Although migrating existing Vue2 projects to Vue3 may require some work, the performance improvement is worth a try.
I hope this article will help you understand the difference between Vue3 and Vue2. By using Vue3, you can build more efficient and smooth applications.
The above is the detailed content of The difference between Vue3 and Vue2: faster response speed. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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)
How to develop a complete Python Web application?
May 23, 2025 pm 10:39 PM
To develop a complete Python Web application, follow these steps: 1. Choose the appropriate framework, such as Django or Flask. 2. Integrate databases and use ORMs such as SQLAlchemy. 3. Design the front-end and use Vue or React. 4. Perform the test, use pytest or unittest. 5. Deploy applications, use Docker and platforms such as Heroku or AWS. Through these steps, powerful and efficient web applications can be built.
Laravel Vue.js single page application (SPA) tutorial
May 15, 2025 pm 09:54 PM
Single-page applications (SPAs) can be built using Laravel and Vue.js. 1) Define API routing and controller in Laravel to process data logic. 2) Create a componentized front-end in Vue.js to realize user interface and data interaction. 3) Configure CORS and use axios for data interaction. 4) Use VueRouter to implement routing management and improve user experience.
How to separate the front and back end of wordpress
Apr 20, 2025 am 08:39 AM
It is not recommended to directly modify the native code when separating WordPress front and back ends, and it is more suitable for "improved separation". Use the REST API to obtain data and build a user interface using the front-end framework. Identify which functions are called through the API, which are retained on the backend, and which can be cancelled. The Headless WordPress mode allows for a more thorough separation, but it is more cost-effective and difficult to develop. Pay attention to security and performance, optimize API response speed and cache, and optimize WordPress itself. Gradually migrate functions and use version control tools to manage code.
How to push the video stream of Hikvision camera SDK to the front-end Vue project for real-time playback?
Apr 19, 2025 pm 07:42 PM
How to push video streams from Hikvision camera SDK to front-end Vue project? During the development process, you often encounter videos that need to be captured by the camera to be circulated...
How to work and configuration of front-end routing (Vue Router, React Router)?
May 20, 2025 pm 07:18 PM
The core of the front-end routing system is to map URLs to components. VueRouter and ReactRouter realize refresh-free page switching by listening for URL changes and loading corresponding components. The configuration methods include: 1. Nested routing, allowing the nested child components in the parent component; 2. Dynamic routing, loading different components according to URL parameters; 3. Route guard, performing logic such as permission checks before and after route switching.
What is the significance of Vue's reactivity transform (experimental, then removed) and its goals?
Jun 20, 2025 am 01:01 AM
ReactivitytransforminVue3aimedtosimplifyhandlingreactivedatabyautomaticallytrackingandmanagingreactivitywithoutrequiringmanualref()or.valueusage.Itsoughttoreduceboilerplateandimprovecodereadabilitybytreatingvariableslikeletandconstasautomaticallyreac
What are the core differences between Vue.js and React in componentized development?
May 21, 2025 pm 08:39 PM
The core differences between Vue.js and React in component development are: 1) Vue.js uses template syntax and option API, while React uses JSX and functional components; 2) Vue.js uses responsive systems, React uses immutable data and virtual DOM; 3) Vue.js provides multiple life cycle hooks, while React uses more useEffect hooks.
Solve the challenges of Laravel and Vue.js form building with Composer
Apr 18, 2025 am 08:12 AM
I'm having a headache when developing a project based on Laravel and Vue.js: How to create and manage forms efficiently. Especially when it is necessary to define the form structure on the backend and generate dynamic forms on the frontend, traditional methods appear cumbersome and error-prone. I tried many methods, but the results were not satisfactory. Finally, I discovered the k-eggermont/lara-vue-builder library, which not only simplified my workflow, but also greatly improved the development efficiency.
