Analyze and solve the problem that js cannot recognize vue files

With the continuous development and change of front-end technology, Vue, as a lightweight front-end framework, is increasingly favored by developers in front-end development. However, when developing with Vue, you will occasionally encounter a troublesome problem: js cannot recognize the Vue file. This article will introduce the causes and solutions to this problem.

1. Cause of the problem

The problem that js cannot recognize the Vue file is because the Vue file is essentially a .vue file, and its syntax is unique to Vue, not ordinary HTML. , CSS, JS syntax. Therefore, using directly in html will not work.

2. Solution

1. Use webpack for packaging

Use webpack to package the Vue file and export a component object that can be recognized by js . Compared with directly introducing .vue files, using Webpack for packaging will be more convenient and flexible. During the packaging process of Webpack, the template, script, and style tags in the .vue file will be cut out, processed by vue-loader, and then packaged and output.

2. Use vue-cli

Using vue-cli can easily build Vue projects, and commonly used Webpack configurations are preset. In a project created using vue-cli, you need to create a Vue file in the src directory in the root directory and import it in js, so that the Vue file can be used.

3. Writing components manually

Writing components manually is not a recommended method. The .vue file can be decomposed into three separate js modules: template, logic and style, which are referenced separately and finally assembled into Vue components. Although Vue files can also be used in this way, it is relatively cumbersome and not easy to maintain.

Conclusion

This article introduces the reasons and solutions for why JS cannot recognize Vue files. This problem can be easily solved using Webpack or vue-cli. Of course, manually writing components is also a feasible way, but it is relatively troublesome. I hope the above content can be helpful to everyone.

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