What are the differences between vue2 and vue3 in creating projects?

With the wide application of Vue.js in front-end development, new versions of Vue.js have also been launched one after another. Vue.js 2.x is currently the most widely used version, and Vue.js 3.x has been released as a new generation of Vue.js version. Compared with the Vue.js 2.x version, the Vue.js 3.x version also has some differences in project creation. This article will conduct a comparative analysis of project creation between Vue.js 2 and Vue.js 3.

1. Project creation command

The project creation command of Vue.js 2.x version is vue-cli, while the project creation command of Vue.js 3.x version is vue.

2. Project creation method

Vue.js 2.x version can use vue-cli to create projects, and Vue.js 3.x version can directly use vue to create projects. The project file structures created by both are similar.

3. Configuration files

The configuration files of Vue.js 2.x version include vue.config.js, babel.config.js, postcss.config.js, etc., while Vue.js The configuration file of version 3.x only includes the vue.config.js file, which contains configuration information such as babel and postcss.

4. Template compilation

Vue.js 2.x version template compilation uses a string processing method, while Vue.js 3.x version uses a compiler. The compiler has been optimized to make the compilation faster.

5. New features

Vue.js 3.x version has added some new features, such as:

1. Vue.js 3.x version supports Composition API , can help developers better organize component logic.
2. Vue.js 3.x version supports Teleport, which can render components to any location in the DOM tree.
3. Vue.js 3.x version supports suspend and asynchronous components, which can better handle asynchronous data and code splitting.
4. Vue.js 3.x version has a new responsive system that can better handle responsive data.

The above are some new features of Vue.js 3.x version.

To sum up, there are some differences in project creation between Vue.js 2.x version and Vue.js 3.x version. Vue.js 3.x version has added some new features to help development Readers can write components better and improve development efficiency. No matter which version is used, Vue.js is an excellent front-end framework that can help developers better implement front-end business logic.

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