search
HomeWeb Front-endVue.jsImprovements of Vue3 over Vue2: a better open source community

Improvements of Vue3 over Vue2: a better open source community

Jul 08, 2023 am 11:36 AM
vue upgradeCommunity optimizationOpen source improvements

Improvements of Vue3 over Vue2: A better open source community

With the continuous development of Internet technology, the front-end framework is also constantly updated and iterated. As a popular front-end framework, Vue.js has always been loved by developers. Vue3, which was officially released in 2020, has made many important improvements compared to Vue2, making Vue.js even more outstanding in the open source community.

First of all, Vue3 has made many optimizations in the implementation of virtual DOM, which has significantly improved rendering performance. The virtual DOM in Vue2 needs to perform a complete diff algorithm every time the data is updated to compare the differences before updating the DOM. This method has lower performance when updating large-scale data. Vue3 uses static compilation optimization based on the observer mechanism to compile templates into rendering functions, avoiding the complete diff process, thereby improving rendering performance.

Let's look at a specific code example:

// Vue2 的代码示例
<template>
  <div>
    <p>{{ message }}</p>
    <button @click="changeMessage">修改消息</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      message: 'Hello Vue2'
    }
  },
  methods: {
    changeMessage() {
      this.message = 'Hello Vue2.0'
    }
  }
}
</script>

In this example, when the button is clicked, the value of the message will be modified to 'Hello Vue2.0'. Vue2 will then perform a complete diff process, find the differences, and then update the DOM.

Now let’s take a look at the improvements of Vue3:

// Vue3 的代码示例
<template>
  <div>
    <p>{{ message }}</p>
    <button @click="changeMessage">修改消息</button>
  </div>
</template>

<script>
import { reactive } from 'vue'

export default {
  setup() {
    const data = reactive({
      message: 'Hello Vue3'
    })

    const changeMessage = () => {
      data.message = 'Hello Vue3.0'
    }

    return {
      message: data.message,
      changeMessage
    }
  }
}
</script>

In Vue3, we use the reactive function to turn the data object into a responsive one. When the data is When the properties of the dependencies change, Vue3 will automatically track the dependencies and perform partial updates without the need for a complete diff process.

In addition to optimizing virtual DOM performance, Vue3 also adds many new features and APIs to make the development experience more powerful. For example, the introduction of the Composition API allows the logic of components to be organized and reused more clearly. Compared with the Options API in Vue2, the Composition API can group related function codes together, improving the maintainability of the code.

In addition, Vue3 has also optimized its support for TypeScript, making it easier for developers to use type checking and smart prompts, reducing errors during the development process.

To sum up, Vue3 has significantly improved performance and functionality compared to Vue2, making it a better open source front-end framework. Developers can improve project development efficiency and user experience by using Vue3.

Reference materials:

  1. Vue.js official documentation: https://v3.vuejs.org/
  2. Evan You’s Vimeo video: https:// vimeo.com/376032605

The above is the detailed content of Improvements of Vue3 over Vue2: a better open source community. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Vue.js vs. Backend Frameworks: Clarifying the DistinctionVue.js vs. Backend Frameworks: Clarifying the DistinctionApr 25, 2025 am 12:05 AM

Vue.js is a front-end framework, and the back-end framework is used to handle server-side logic. 1) Vue.js focuses on building user interfaces and simplifies development through componentized and responsive data binding. 2) Back-end frameworks such as Express and Django handle HTTP requests, database operations and business logic, and run on the server.

Vue.js and the Frontend Stack: Understanding the ConnectionsVue.js and the Frontend Stack: Understanding the ConnectionsApr 24, 2025 am 12:19 AM

Vue.js is closely integrated with the front-end technology stack to improve development efficiency and user experience. 1) Construction tools: Integrate with Webpack and Rollup to achieve modular development. 2) State management: Integrate with Vuex to manage complex application status. 3) Routing: Integrate with VueRouter to realize single-page application routing. 4) CSS preprocessor: supports Sass and Less to improve style development efficiency.

Netflix: Exploring the Use of React (or Other Frameworks)Netflix: Exploring the Use of React (or Other Frameworks)Apr 23, 2025 am 12:02 AM

Netflix chose React to build its user interface because React's component design and virtual DOM mechanism can efficiently handle complex interfaces and frequent updates. 1) Component-based design allows Netflix to break down the interface into manageable widgets, improving development efficiency and code maintainability. 2) The virtual DOM mechanism ensures the smoothness and high performance of the Netflix user interface by minimizing DOM operations.

Vue.js and the Frontend: A Deep Dive into the FrameworkVue.js and the Frontend: A Deep Dive into the FrameworkApr 22, 2025 am 12:04 AM

Vue.js is loved by developers because it is easy to use and powerful. 1) Its responsive data binding system automatically updates the view. 2) The component system improves the reusability and maintainability of the code. 3) Computing properties and listeners enhance the readability and performance of the code. 4) Using VueDevtools and checking for console errors are common debugging techniques. 5) Performance optimization includes the use of key attributes, computed attributes and keep-alive components. 6) Best practices include clear component naming, the use of single-file components and the rational use of life cycle hooks.

The Power of Vue.js on the Frontend: Key Features and BenefitsThe Power of Vue.js on the Frontend: Key Features and BenefitsApr 21, 2025 am 12:07 AM

Vue.js is a progressive JavaScript framework suitable for building efficient and maintainable front-end applications. Its key features include: 1. Responsive data binding, 2. Component development, 3. Virtual DOM. Through these features, Vue.js simplifies the development process, improves application performance and maintainability, making it very popular in modern web development.

Is vue.js better than React?Is vue.js better than React?Apr 20, 2025 am 12:05 AM

Vue.js and React each have their own advantages and disadvantages, and the choice depends on project requirements and team conditions. 1) Vue.js is suitable for small projects and beginners because of its simplicity and easy to use; 2) React is suitable for large projects and complex UIs because of its rich ecosystem and component design.

Vue.js's Function: Enhancing User Experience on the FrontendVue.js's Function: Enhancing User Experience on the FrontendApr 19, 2025 am 12:13 AM

Vue.js improves user experience through multiple functions: 1. Responsive system realizes real-time data feedback; 2. Component development improves code reusability; 3. VueRouter provides smooth navigation; 4. Dynamic data binding and transition animation enhance interaction effect; 5. Error processing mechanism ensures user feedback; 6. Performance optimization and best practices improve application performance.

Vue.js: Defining Its Role in Web DevelopmentVue.js: Defining Its Role in Web DevelopmentApr 18, 2025 am 12:07 AM

Vue.js' role in web development is to act as a progressive JavaScript framework that simplifies the development process and improves efficiency. 1) It enables developers to focus on business logic through responsive data binding and component development. 2) The working principle of Vue.js relies on responsive systems and virtual DOM to optimize performance. 3) In actual projects, it is common practice to use Vuex to manage global state and optimize data responsiveness.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function