How to Fix ReferenceError: module is not defined When Using ES Modules in Node.js?

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Why Does This ReferenceError Occur?

How to Resolve This Issue

Use import and export

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File Extensions

Transform with Tools

For projects that must support both module systems or if you have libraries still using CommonJS, consider using a build tool like Babel or a bundler like Webpack to transform the code accordingly.

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In your Babel configuration:

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Conclusion

Embrace these updates and enjoy the future-proof benefits of ES modules!