Call a function: Difference between revisions

=={{header|Kotlin}}==

In Kotlin parameters are always passed by value though, apart from the (unboxed) primitive types, the value passed is actually a reference to an object.

 

fun fun2(i: Int) = println("One argument = $i")

fun fun8(x: String) = { y: String -> x + " " + y }

 

fun1() // no arguments

fun2(2) // fixed number of arguments, one here

println(1 + fun6(4, ::fun5) + 3) // first class context within an expression

println(fun5(5)) // obtaining return value

fun1() // calling sub-routine which has a Unit return type by default

println(fun7(11)) // calling function with a return type of Double (here explicit but can be implicit)

20

25

No arguments

5.5

Hello world

</pre>

=={{header|Lambdatalk}}==

In lambdatalk functions are abstractions {lambda {args} body} whose behaviour is best explained as a part of such a complete expression {{lambda {args} body} values}.