object None in scala

True if the option is the None value, false otherwise.

get the value of this option. @requires that the option is nonEmpty.

Returns a string representation of the object.

The default representation is platform dependent.

By default the empty string. Implementations may override this method in order to prepend a string prefix to the result of the toString methods.

return k for a product A(x_1,...,x_k)

for a product A(x_1,...,x_k), returns x_(n+1) for 0 <= n < k

Method Summary
`def`	get : Nothing get the value of this option. @requires that the option is nonEmpty.
`def`	isEmpty : Boolean True if the option is the `None` value, false otherwise.
`override def`	productArity : Int return k for a product `A(x_1,...,x_k)`
`override def`	productElement (arg0 : Int) : Any for a product `A(x_1,...,x_k)`, returns `x_(n+1)` for `0 <= n < k`
`override def`	productPrefix : java.lang.String By default the empty string. Implementations may override this method in order to prepend a string prefix to the result of the toString methods.
`protected def`	readResolve : AnyRef
`override final def`	toString : java.lang.String Returns a string representation of the object.

Methods inherited from Option
isDefined, get, getOrElse, map, flatMap, filter, foreach, orElse, elements, toList, toRight, toLeft

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

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

	Scala Library

	Scala Library