- https://malanjp.github.io/
- Work: Web developer from Japan.
- Like: Cat, PC Game, Anime, Manga.
malanjp / listpluspy Goto Github PK
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License: MIT License
productは全要素の積を求める.
scala> list.product
res: Int = 112
maxは全要素の最大値を求める.
scala> list.max
res: Int = 8
takeRight(n)は最後のn個の要素からなるリストを求める.
scala> list.takeRight(3)
res: List[Int] = List(7, 1, 8)
take(n)は最初のn個の要素からなるリストを求める.
scala> list.take(2)
res: List[Int] = List(2, 7)
contains(x)はxが要素に含まれているかどうかを調べる.
scala> list.contains(1)
res: Boolean = true
scala> list.contains(3)
res: Boolean = false
sortedは昇順にソートしたリストを求める.
scala> list.sorted
res: List[Int] = List(1, 2, 7, 8)
minは全要素の最小値を求める.
scala> list.min
res: Int = 1
drop(n)は最初のn個の要素を除いたリストを求める.
scala> list.drop(2)
res: List[Int] = List(1, 8)
sumは全要素の和を求める.
scala> list.sum
res: Int = 18
reverseは逆順のリストを求める (Lispのreverse).
scala> list.reverse
res: List[Int] = List(8, 1, 7, 2)
dropRight(n)は最後のn個の要素を除いたリストを求める.
scala> list.dropRight(3)
res: List[Int] = List(2)
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