Function24

Constructors

constantconstCreates a zero-argument function that always returns the provided value.

Models

FunctionNtypeRepresents a function with multiple arguments.LazyArgtypeA zero-argument function that produces a value when invoked.

Combinators

applyconstApplies a function to a given value.composeconstComposes two functions, ab and bc into a single function that takes in an argument a of type A and returns a result of type C.dualconstCreates a function that can be called in data-first style or data-last (pipe-friendly) style.flipconstReverses the order of arguments for a curried function.flowfunctionPerforms left-to-right function composition.identityconstReturns its input argument unchanged.pipefunctionPipes the value of an expression through a left-to-right sequence of functions.SKconstReturns the second argument and discards the first.tupledconstCreates a tupled version of this function: instead of n arguments, it accepts a single tuple argument.untupledconstConverts a tupled function back to an uncurried function.

Caching

memoizefunctionCreates a memoized function whose input is an object, caching results by object identity.

Constants

constFalseconstReturns false when called.constNullconstReturns null when called.constTrueconstReturns true when called.constUndefinedconstReturns undefined when called.constVoidconstReturns no meaningful value when called.

Type Lambdas

FunctionTypeLambdainterfaceType lambda for function types, used for higher-kinded type operations.

Utility Types

absurdconstMarks an impossible branch by accepting a never value and returning any type.castconstReturns the input value with a different static type.holeconstCreates a compile-time placeholder for a value of any type.satisfiesconstEnsures that the type of an expression matches some type, without changing the resulting type of that expression.