[#21] add supplement about usage of non null assertion - Githubissues

access-company / kotlin_intro

introduction of Kotlin!

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[#21] add supplement about usage of non null assertion #23

Closed pankona closed 6 years ago

pankona commented 6 years ago

Pull Request for issue #21

更新内容

強制呼び出し演算子 (!!) について補足を追記

pankona commented 6 years ago

こちらはマージします！