Editing Nested function (section)

=== Higher-order functions ===

{{Main|Higher-order function}}

In some languages, it is possible to create a nested function that accesses a set of parameters from the outer function, that is a [[Closure (computer programming)|closure]], and have that function be the outer function's return value. Thus it is possible to return a function that is set to fulfill a certain task with little or no further parameters given to it, which can increase performance quite significantly.<ref name="Higher-Order Functions and Lambdas – Kotlin Programming Language">[http://kotlinlang.org/docs/reference/inline-functions.html Higher-Order Functions and Lambdas - Kotlin Programming Language]</ref>