haocheng
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Bottomline: lambdas in Java 8 on Android are not at all free, and one should probably think twice every time and choose between good code and performance. In Kotlin, you don’t have to make such compromises, and you can use lambdas as much as you need to express the ideas in your code.
蠻好奇在 Android 用 Lambda 語法對效能會有多大影響...