Composition example

composition.js

function last(n){
  return next => next - n;
}

function second(n){
  return next => next * n;
}

function first(n){
  return next => next + n;
}

var compose = (...funcs) => x =>
  funcs.reduceRight((accumulator, currentValue) => {
    console.log(accumulator, currentValue)
    return currentValue(accumulator)
  }, x)


var chain = [last, second, first].map(f => f(2));

console.warn(
  compose(...chain)(10)
)