Derivative

abstract def peek: A

Get the last used value without updating.

abstract def rev: Int

Revision of its value.

abstract def value(): A

Get the latest value, updating itself if necessary.

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

macro def extract: A

If this Px contains a function, it can be extracted and the Px dropped from the signature.

def finalize(): Unit

def flatMap[B](f: (A) ⇒ Px[B]): Derivative[B]

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def map[B](f: (A) ⇒ B): Derivative[B]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

final def toCallback: CallbackTo[A]

def toString(): String

final def valueSince(r: Int): Option[A]

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

final def withReuse(implicit ev: Reusability[A]): Px[A]

In addition to updating when the underlying Px changes, this will also check its own result and halt updates if reusable.