Higher order functions

index.js

var Q = function(f, g){
  return function(x, y){
    return f(x, y) > g(x, y)
  }
}

var addition = function(a, b) { return a + b }
var subtraction = function(a, b) { return a - b }
var isAddingGreaterThanSubtracting = Q(addition, subtraction)
var result = isAddingGreaterThanSubtracting(1, 2)

console.log(result)
console.log(typeof result)