Скачать или смотреть Why Your Vue Component Might Not Render: Understanding Custom Element Errors

Struggling to get your Vue component to render correctly? This guide breaks down common issues and provides a step-by-step solution to fix the `Unknown custom element` error.
---
This video is based on the question https://stackoverflow.com/q/64286964/ asked by the user 'andig' ( https://stackoverflow.com/u/608395/ ) and on the answer https://stackoverflow.com/a/64287047/ provided by the user 'Karl-Johan Sjögren' ( https://stackoverflow.com/u/547640/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Why does this vue component not render

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Why Your Vue Component Might Not Render: Understanding Custom Element Errors

If you've ever found yourself banging your head against a wall trying to figure out why your Vue.js component will not render, you're not alone! Many developers face the infamous Unknown custom element error when working with components. In this post, we will explore the reasons for this issue and provide you with a straightforward solution to get your Vue component rendering as expected.

The Problem: Why Isn’t My Vue Component Rendering?

When working with Vue components, you might encounter the following snippet of code, where a simple component isn't rendering:

[[See Video to Reveal this Text or Code Snippet]]

This code results in an error message stating Unknown custom element: <container>, indicating that Vue does not recognize the <container> tag.

The Solution: Correctly Registering Your Component

The core issue here is the order in which your Vue instance and the component are defined. To resolve this, you simply need to switch the order of the component registration and the Vue instance creation. Here’s how to do it:

Step 1: Move the Component Registration Before the Vue Instance

Here’s an updated version of the code with the proper registration sequence:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Test the Updated Code

Once you've made this change, you can run the code snippet again. The container component should now render correctly within the # app div, and you should see the expected output without the Unknown custom element error.

Conclusion

In conclusion, the sequence of registering your Vue component and creating the Vue instance is crucial to ensure everything functions correctly. By simply rearranging these statements, you can effectively eliminate the Unknown custom element error and see your component render as expected.

By following the steps outlined in this post, you should now have a deeper understanding of how to handle component registration in Vue.js. If you have further questions or additional issues with Vue components, feel free to leave a comment below! Happy coding!