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@vc7(Lihsuan CHEN)

Unit Type

Last updated at Posted at 2017-05-30

在邊練習 Kotlin 的時候，看方法定義看到了一個型別

Unit

八竿子打不著的無法猜出那是什麼東西，查了一下就把它筆記下來。

官方文件是這樣寫的：

The type with only one value: the Unit object. This type corresponds to the void type in Java.
- cf: Unit

:bulb: :bulb: :bulb: :smirk:

所以他其實就是 void

如果有個回傳值，或是 block 的定義是寫 -> Unit 的話，就是可以不用回傳的意思 :white_flower:

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