Function
A module defining utility methods for higher-order functional programming.
Attributes
- Source
- Function.scala
- Graph
- Supertypes
- Self type
- Function.type
Members list
Value members
Concrete methods
Given a sequence of functionsf1, ...,fn, return the functionf1 andThen ... andThen fn.
Given a sequence of functionsf1, ...,fn, return the functionf1 andThen ... andThen fn.
Value parameters
- fs
The given sequence of functions
Attributes
- Source
- Function.scala
The constant function
Tupling for functions of arity 2.
Tupling for functions of arity 2. This transforms a function of arity 2 into a unary function that takes a pair of arguments.
Attributes
- Note
These functions are slotted for deprecation, but it is on hold pending superior type inference for tupling anonymous functions.
- Source
- Function.scala
Tupling for functions of arity 3.
Tupling for functions of arity 3. This transforms a function of arity 3 into a unary function that takes a triple of arguments.
Attributes
- Source
- Function.scala
Tupling for functions of arity 4.
Tupling for functions of arity 4. This transforms a function of arity 4 into a unary function that takes a 4-tuple of arguments.
Attributes
- Source
- Function.scala
Tupling for functions of arity 5.
Tupling for functions of arity 5. This transforms a function of arity 5 into a unary function that takes a 5-tuple of arguments.
Attributes
- Source
- Function.scala
Uncurrying for functions of arity 2.
Uncurrying for functions of arity 2. This transforms a unary function returning another unary function into a function of arity 2.
Attributes
- Source
- Function.scala
Uncurrying for functions of arity 3.
Uncurrying for functions of arity 4.
Uncurrying for functions of arity 5.
Turns a functionA => Option[B] into aPartialFunction[A, B].
Turns a functionA => Option[B] into aPartialFunction[A, B].
Important note: this transformation implies the original function may be called 2 or more times on each logical invocation, because the only way to supply an implementation ofisDefinedAt is to call the function and examine the return value. See alsoscala.PartialFunction, methodapplyOrElse.
Value parameters
- f
a function
T => Option[R]
Attributes
- Returns
a partial function defined for those inputs where f returns
Some(_)and undefined wherefreturnsNone.- See also
scala.PartialFunction, method
lift.- Source
- Function.scala
Un-tupling for functions of arity 2.
Un-tupling for functions of arity 2. This transforms a function taking a pair of arguments into a binary function which takes each argument separately.
Attributes
- Source
- Function.scala
Un-tupling for functions of arity 3.
Un-tupling for functions of arity 3. This transforms a function taking a triple of arguments into a ternary function which takes each argument separately.
Attributes
- Source
- Function.scala
Un-tupling for functions of arity 4.
Un-tupling for functions of arity 4. This transforms a function taking a 4-tuple of arguments into a function of arity 4 which takes each argument separately.
Attributes
- Source
- Function.scala
Un-tupling for functions of arity 5.
Un-tupling for functions of arity 5. This transforms a function taking a 5-tuple of arguments into a function of arity 5 which takes each argument separately.
Attributes
- Source
- Function.scala