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[iOS8] Swiftで文字列を初期化(空に)する方法

Last updated at Posted at 2014-12-05

Swiftで文字列を初期化(空に)する方法をサンプルコードを利用して説明します。

方法としては、3つあります。
・型を宣言し直す
・””を代入する
・nilを代入する

var str = "Hello World!"
str = ""           // ""
str = "Hello World!"
str = String()     // ""
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