Created
April 29, 2011 15:30
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findを命令型と関数型で比較
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case class Car(name: String, color: String) | |
def find(name: String, cars: List[Car]): Option[Car] = { | |
for (car <- cars) { | |
if (car.name == name) { | |
return Some(car) | |
} | |
} | |
None | |
} | |
@Test | |
def test { | |
var cars = List(Car("レガシー", "シルバー"), Car("インプレッサ", "ホワイト"), Car("フォレスター", "ブラック")) | |
val result = find("インプレッサ", cars) | |
println(result) | |
val result2 = cars.find(_.name == "インプレッサ") | |
println(result2) | |
} |
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