Recipe: Immutable Data Updates with Kotlin

📰 Dev.to · Ted Hagos

Learn how to update immutable data in Kotlin using the copy() method and other language features

intermediate Published 29 Sept 2025
Action Steps
  1. Create a data class in Kotlin to define your immutable data structure
  2. Use the copy() method to create a new instance with updated values
  3. Apply the 'with' function to simplify the update process and reduce boilerplate code
  4. Test your implementation to ensure the original data remains unchanged
  5. Compare the benefits of using immutable data updates versus mutable approaches
Who Needs to Know This

Android or backend developers working with Kotlin can benefit from this technique to ensure data integrity and simplify code

Key Insight

💡 Kotlin's copy() method allows for efficient and safe updates to immutable data classes

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📚 Update immutable data in Kotlin with ease using the copy() method! 🚀

Key Takeaways

Learn how to update immutable data in Kotlin using the copy() method and other language features

Full Article

Got a data class? Great! They give us a magical copy() method for free. Combine that with Kotlin's...
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