Should I learn vue or vue3.0?

With the rapid development of front-end technology, the Vue.js framework is also constantly updated and iterated. Currently, there are two main versions of Vue.js, one is Vue.js 2.x and the other is Vue.js 3.0. So, for beginners, which version should they choose to learn Vue.js? This article will analyze and compare from the following aspects.

1. History

Vue.js 2.x was officially released in February 2016. Its predecessor is Vue.js 1.x, which is a lightweight response MVVM (Model-View-ViewModel) framework. Vue.js 2.x has been greatly improved on the basis of version 1.x, optimizing its performance, providing a better development experience, and also adding many new features.

Vue.js 3.0 was officially released in September 2020. Its release is hailed as a major event in the history of Vue.js. Vue.js 3.0 is refactored and optimized based on the 2.x version, providing better rendering performance, better development experience and better type checking, while also solving some problems of the 2.x version question.

2. Performance

In terms of performance, Vue.js 3.0 is an upgrade compared to the 2.x version. In Vue.js 3.0, a Proxy-based responsive system is adopted, which greatly improves the performance of Vue.js. In addition, in version 3.0, the concept of static tree is also introduced, which can statically optimize static content. According to the official test results of Vue.js, when the render function contains a large number of static nodes, the performance of version 3.0 is 30% higher than that of version 2.x.

3. Development experience

Vue.js 3.0 has also made many improvements in the development experience. First, the Composition API in version 3.0 allows developers to organize and share logic code more flexibly. Secondly, by introducing the Teleport component, DOM elements can be manipulated more conveniently. In addition, Vue.js 3.0 also supports TypeScript, providing better type checking and code hints.

4. Ecological environment

Vue.js is a very active ecosystem with a rich library of plug-ins and components. In the Vue.js 2.x era, its component library was mainly based on Element UI and Ant Design Vue. In the Vue.js 3.0 era, many component libraries have begun to support version 3.0, such as Element Plus, Ant Design Vue 2.0, etc.

5. Learning Curve

Compared with Vue.js 2.x, the learning curve of Vue.js 3.0 is slightly steeper. Because the Composition API of version 3.0 is different from the Options API of version 2.x, it needs to be relearned and understood. Moreover, because it has many new features and concepts, it requires more time and energy to master.

6. Conclusion

To sum up, if you are learning Vue.js, which version should you choose? If you are just starting to learn Vue.js, it is recommended to start with version 2.x, because it has a more mature ecological environment and a simpler and easier-to-use Options API, and the learning curve is relatively low. But if you are using Vue.js in actual project development and need higher performance and a better development experience, then version 3.0 is a good choice. Of course, currently in version 3.0, some community libraries and plug-ins have not been refurbished and may be more troublesome to use.

In short, no matter which version you choose, it will not affect your ability to master Vue.js. Just choose according to your own needs and learn and use it to suit your work needs.

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