Скачать или смотреть How to Import Chart.js in Your Ember Addon: A Common Fix for Component Errors

Struggling to import Chart.js in your Ember addon component? Discover how to solve import issues and optimize your Ember.js project with this guide.
---
This video is based on the question https://stackoverflow.com/q/70615052/ asked by the user 'user1814277' ( https://stackoverflow.com/u/1814277/ ) and on the answer https://stackoverflow.com/a/70622668/ provided by the user 'user1814277' ( https://stackoverflow.com/u/1814277/ ) 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: Ember addon: Could not find module from within component

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.
---
How to Import Chart.js in Your Ember Addon: A Common Fix for Component Errors

When working on an Ember.js addon project, developers often face challenges related to module imports, particularly when integrating packages like Chart.js. If you’ve encountered an error that says "Could not find module chart.js/auto imported from chartjs-test/components/chart," you're not alone. In this guide, we'll explore why this error occurs and how to properly import modules into your Ember components.

Understanding the Problem

Using Chart.js in your Ember addon might seem like a straightforward task, but developers often find issues that hinder their progress. The steps to reproduce the problem are straightforward:

Install the Chart.js package using npm:

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

Generate a new component:

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

Add <Chart /> to your application.hbs in the dummy app.

In your addons/component/chart.js, you may try to add the import statement:

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

Following these steps, running your Ember application might throw the following error:

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

Solution to the Import Error

After some investigation, we discovered that the import process is a bit different than expected. Here’s how to correctly handle module imports for your Ember addon.

Step-by-Step Solution

Correct Import Placement: Initially, it was noted that adding your import Chart statement inside the component file didn’t work as intended. Instead, as a first workaround, you could add this statement into the app/component/chart.js. However, take note that this might lead to issues when using the addon in different contexts.

Properly Update Dependencies: The correct long-term solution involves modifying your addon’s package.json. Locate the ember-auto-import dependency and move it from devDependencies to dependencies. This adjustment ensures that the module can be resolved correctly, regardless of how your addon is utilized.

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

Re-run Your Ember Application: After updating your package.json, be sure to re-run your Ember application to see if the changes successfully resolve the import issue.

Common Additional Issues

If you encounter similar import issues with other packages, such as chroma, follow the same approach of ensuring correct dependency management and import statement placement.

Conclusion

Importing external packages like Chart.js into your Ember addon can present its own set of challenges. By understanding the structure and ensuring dependencies are correctly placed, you can streamline your project development and minimize errors. Remember, moving dependencies to the right section of your package.json can save you a lot of troubleshooting time!

Whether you're new to Ember.js or an experienced developer, maintaining proper import practices is key to building efficient and error-free applications.

If you have encountered similar issues or have other tips on managing Ember addons, feel free to share in the comments below! Happy coding!