第11章：ScalaのSeqリファレンス ref: http://qiita.com/f81@github/items/75c616a527cf5c039676

file0.scala

scala> Seq(1, 2, 3)(2)
res0: Int = 3

file1.scala

scala> Seq(1, 2, 3) isDefinedAt (3)
res1: Boolean = false

scala> Seq(1, 2, 3) isDefinedAt (2)
res2: Boolean = true

file10.scala

scala> Seq(1, 2, 3, 2) prefixLength (_ != 3)
res15: Int = 2

file11.scala

scala> 4 +: Seq(1, 2, 3)
res16: Seq[Int] = List(4, 1, 2, 3)

file12.scala

scala> Seq(1, 2, 3) :+ 4
res17: Seq[Int] = List(1, 2, 3, 4)

file13.scala

scala> Seq(1, 2, 3) padTo (10, 4)
res18: Seq[Int] = List(1, 2, 3, 4, 4, 4, 4, 4, 4, 4)

file14.scala

scala> Seq(1, 2, 3) patch (1, Seq(4, 5, 6), 2)
res19: Seq[Int] = List(1, 4, 5, 6)

file15.scala

scala> Seq(1, 2, 3) updated (2, 4)
res20: Seq[Int] = List(1, 2, 4)

file16.scala

scala> Seq(4, 1, 5, 2, 3, 7, 8) sorted
res21: Seq[Int] = List(1, 2, 3, 4, 5, 7, 8)

file17.scala

scala> Seq(1, 2, 3) reverse
res22: Seq[Int] = List(3, 2, 1)

file18.scala

scala> Seq(1, 2, 3) startsWith Seq(1, 2)
res23: Boolean = true

scala> Seq(1, 2, 3) startsWith Seq(2, 3)
res24: Boolean = false

file19.scala

scala> Seq(1, 2, 3) endsWith Seq(2, 3)
res25: Boolean = true

scala> Seq(1, 2, 3) endsWith Seq(1, 2)
res26: Boolean = false

file2.scala

scala> Seq(1, 2, 3) length
res3: Int = 3

file20.scala

scala> Seq(1, 2, 3) contains (3)
res27: Boolean = true

scala> Seq(1, 2, 3) contains (4)
res28: Boolean = false

file21.scala

scala> Seq(1, 2, 3, 4, 5) containsSlice Seq(3, 4)
res29: Boolean = true

scala> Seq(1, 2, 3, 4, 5) containsSlice Seq(4, 4)
res30: Boolean = false

file22.scala

scala> Seq(1, 2, 3) intersect Seq(2, 3, 4, 5, 6)
res28: Seq[Int] = List(2, 3)

file23.scala

scala> Seq(2, 3, 4, 5, 6) diff Seq(1, 2, 3)
res30: Seq[Int] = List(4, 5, 6)

file24.scala

scala> Seq(2, 3, 4, 5, 6) union Seq(1, 2, 3)
res31: Seq[Int] = List(2, 3, 4, 5, 6, 1, 2, 3)

file25.scala

scala> Seq(2, 3, 4, 5, 6, 2, 3) distinct
res32: Seq[Int] = List(2, 3, 4, 5, 6)

file3.scala

scala> Seq(1, 2, 3) lengthCompare (2)
res4: Int = 1

scala> Seq(1, 2, 3) lengthCompare(3)
res5: Int = 0

scala> Seq(1, 2, 3) lengthCompare (4)
res6: Int = -1

file4.scala

scala> Seq(1, 2, 3) indices
res7: scala.collection.immutable.Range = Range(0, 1, 2)

file5.scala

scala> Seq(1, 2, 3, 2) indexOf (2)
res8: Int = 1

scala> Seq(1, 2, 3, 2) indexOf (4)
res9: Int = -1

file6.scala

scala> Seq(1, 2, 3, 2) lastIndexOf (2)
res10: Int = 3

file7.scala

scala> Seq(1, 2, 3, 2, 3) indexOfSlice Seq(2, 3)
res11: Int = 1

scala> Seq(1, 2, 3, 2, 3) indexOfSlice Seq(2, 2)
res12: Int = -1

file8.scala

scala> Seq(1, 2, 3, 2, 3) lastIndexOfSlice Seq(2, 3)
res13: Int = 3

file9.scala

scala> Seq(1, 2, 3, 2, 3) indexWhere (_ == 2)
res14: Int = 1