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HomeWeb Front-endFront-end Q&AWhich one is easier to use, vuue2 or vue3?

With the continuous updating of technology, the front-end framework is also constantly evolving. As a popular front-end framework, Vue.js has been widely used. However, there are now two versions of Vue.js: Vue2 and Vue3. So, what's the difference between these two versions? Which one is better? This article will explore this.

The differences between Vue2 and Vue3

  1. Performance optimization

Vue3 has made a lot of optimizations in terms of performance. Vue3 uses Proxy instead of Object.defineProperty for data hijacking, which makes Vue3 more than 10 times faster than Vue2 in many scenarios. It also makes large-scale optimizations in terms of Bundle size, rendering speed and update speed.

  1. API design

In order to optimize performance, Vue3 has made changes to its API. Vue3 provides a more direct and easy-to-understand API, allowing developers to develop applications more quickly. For example, the Composition API is new in Vue3, making component code more composable and reusable.

  1. Readability

In order to make the code more readable, some commands have been changed in Vue3. For example, in Vue2, the code using v-if and v-for on the same element was confusing and confusing, but in Vue3 this problem is solved. Therefore, the code is more readable in Vue3.

  1. TypeScript support

Vue3 fully supports TypeScript, which will greatly improve code quality and maintainability. The Vue2 official website also provides TypeScript support, but it is only implemented through community plug-ins rather than native support.

The advantages and disadvantages of Vue2 and Vue3

Vue2 advantages:

  1. The community is mature and the related ecological environment is complete.
  2. For small projects, Vue2 has enough functions that users can easily get started using it.
  3. Better compatibility, supports a large number of third-party dependencies and plug-ins.

Disadvantages of Vue2:

  1. The package size is larger and the performance is lower when handling larger applications.
  2. Low compatibility with TypeScript.
  3. For large projects, Vue2 lacks the necessary modular API, resulting in poor reusability and maintainability between components.

Vue3 Advantages:

  1. Performance optimization is obvious, and the performance is significantly improved when processing large applications.
  2. Adopts a more intuitive and easy-to-understand API and supports TypeScript, allowing users to develop applications more quickly.
  3. The modular API is more complete, and the reusability and maintainability are significantly improved.

Disadvantages of Vue3:

  1. The community ecology is not complete enough, and some plug-ins and dependencies are temporarily incompatible with Vue3.
  2. The training cost is relatively higher and it takes longer to learn and adapt.

Overall, Vue3 has more advantages than Vue2, but it also has some disadvantages. For existing Vue2 projects, upgrading to Vue3 is not an easy and quick task. For new projects, Vue3 is obviously better, with extremely high performance and good maintainability, which can speed up the development process.

Conclusion

To sum up, Vue3 is better than Vue2, with higher performance, better maintainability and a more intuitive and easy-to-understand API. Although Vue3 is still relatively in the development stage of the community ecosystem, its powerful functions and good scalability will make it the mainstream of future front-end frameworks.

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