JS Bin// source https://jsbin.com/kuneyiq

jsbin.kuneyiq.js

function callAndLog(a, b, operation) {
  console.log('Will call operation with params: ' + a + ', ' + b);
  return operation(a,b);
}
function add(a,b) {
  return a+b;
}

add(2,2); // 2;
callAndLog(3,3,add); // 9 (And logs message in console)

callAndLog(3,3, function(a,b) {
  return a-b; 
}); // 0 (And logs message in console)