Maybe this sort of thing doesn’t happen too often, but it’s something I’ve started noticing more and more as I read code in the wild.ĭid I miss a case where takeIf() and takeUnless() would be appropriate, or a case when they introduce errors? Let me know, I’m always happy to chat and appreciate feedback. On the other hand, it feels like calling takeIf() or takeUnless() on an expression should at least be a warning in IntelliJ.
The takeIf() and takeUnless() functions aren’t doing anything you can’t do with if/else, it just makes things easier to read in some cases (which I value highly when writing code). I like the fact if is an expression in Kotlin, and I think that reduces some of the utility of takeIf() and takeUnless(). 3.3 Example with classes 4 Features (with reference to Java) Toggle Features (with reference to Java) subsection 4.1 Syntactic flexibility 4.2 Unified type system 4.3 For-expressions 4.4 Functional tendencies 4.4.1 Everything is an expression 4.4.2 Type inference 4.4.3 Anonymous functions 4.4.4 Immutability 4.4. I do find places in my code to use it, but more often than not I use an if/else expression instead. Any is a function that is added as an extension to Iterable and Map interfaces, which take a higher-order function as param to predicate the condition and. Closing ThoughtsĪs we’ve seen, the places where we might use takeIf() and takeUnless() can be fairly subjective. takeIf Īgain, it’s subjective that the takeIf() version is any better, but some might find easier to read. Senior Software Engineer with API, Java, Kotlin and Knowledge of GDPR and MLPS (China)The scope of the consultant services is to assist IKEA in Assist the DSM Linehaul team in finalizing the work required for the Pre-foundation (API Layer).This means:Help the Linehaul team completely Isolate Centiro from the Ikea landscape.
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