Compare and contrast Kotlin's `apply` and `let` scope functions
This tests your grasp of idiomatic Kotlin scope functions. `apply` uses `this` and returns the object, ideal for configuration. `let` uses `it` and returns the lambda result, useful for null-safe chaining.
This tests your deep understanding of Kotlin's idiomatic scope functions, focusing on context (`this`/`it`) and return value trade-offs. A great answer differentiates them: `apply` uses `this` and returns the object (for configuration), while `let` uses `it` and returns the lambda's result (for null-safe chaining). The main red flag is confusing the return values, leading to incorrect chaining, or using `let` when `apply` is more readable for object setup.
Read the original → kotlinlang.org
- #kotlin
- #android
- #scope functions
- #api design
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