JAVASCRIPT

pass a function as a parameter in other function

function map(f, a) {
  let result = []; // Create a new Array
  let i; // Declare variable
  for (i = 0; i != a.length; i++)
    result[i] = f(a[i]);
  return result;
}
const f = function(x) {
   return x * x * x;
}
let numbers = [0, 1, 2, 5, 10];
let cube = map(f,numbers);
console.log(cube);

function as an argument of another function

bool DoSomeCalculation(int a, int b, int(*Calculator)(int, int)) 
{ 
	return Calculator(a, b); 
}