scala
trait Function2

[source: `scala/Function2.scala`]

`` `trait` Function2[-T1, -T2, +R]
  `extends` AnyRef

  Function with 2 parameters.

  In the following example the definition of `max` is a shorthand for the anonymous class definition `anonfun2`:

        object Main extends Application {

          val max = (x: Int, y: Int) => if (x < y) y else x

          val anonfun2 = new Function2[Int, Int, Int] {
            def apply(x: Int, y: Int): Int = if (x < y) y else x
          }

          Console.println(max(0, 1))
          Console.println(anonfun2(0, 1))
        }

Method Summary
`abstract def` | apply (v1 : T1, v2 : T2) : R
`override def` | toString : String

Methods inherited from AnyRef
getClass, hashCode, equals, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized

Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf

Method Details

`abstract` `def` apply(v1 : T1, v2 : T2) : R

`override` `def` toString : String