Declaring and calling inner functions

Declaring and calling inner functions

• Category: Functions

• Description: Declaring and calling functions within the body of another function

• Code:

 
using System.Console;

def FunctionSample2()
{
	def even(n) { n % 2 == 0 }
	def tick(x) { WriteLine($"tick $x") }
	def tock(x) { WriteLine($"tock $x") }
           
	def choose(f, g, h, x) { if (f(x)) g(x) else h(x) }
	def ticktock = choose(even, tick, tock, _);  // ticktock is a function built out of other functions using 'choose'
	foreach (i in [0..10]) 
		ticktock(i);    

}

FunctionSample2()

• Execution Result:

tick 0 
tock 1 
tick 2 
tock 3 
tick 4 
tock 5 
tick 6 
tock 7 
tick 8
tock 9 
tick 10 

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