Trait Function0.Function0

trait Function0[+R] extends AnyRef

A function of 0 parameters.

In the following example, the definition of javaVersion is a shorthand for the anonymous class definition anonfun0:

object Main extends App {
  val javaVersion = () => sys.props("java.version")

  val anonfun0 = new Function0[String] {
    def apply(): String = sys.props("java.version")
  }
  assert(javaVersion() == anonfun0())
}

Supertypes	class Object trait Matchable class Any
Known subtypes	20 types class FromJavaBooleanSupplier class FromJavaDoubleSupplier class FromJavaIntSupplier class FromJavaLongSupplier class FromJavaSupplier[T] trait Reference[T] trait ReferenceWrapper[T] class PhantomReference[T] class SoftReference[T] class WeakReference[T] class AbstractFunction0[R] trait JFunction0$mcB$sp trait JFunction0$mcC$sp trait JFunction0$mcD$sp trait JFunction0$mcF$sp trait JFunction0$mcI$sp trait JFunction0$mcJ$sp trait JFunction0$mcS$sp trait JFunction0$mcV$sp trait JFunction0$mcZ$sp
Self type	() => R

Abstract methods

Source

def apply(): R

Apply the body of this function to the arguments.

Returns	the result of function application.

Concrete methods

Source

override def toString(): String

Returns a string representation of the object.

The default representation is platform dependent.

Returns	a string representation of the object.
Definition Classes	Any