compose 구현

compose.js

function compose() { 
  const funcArray = Array.prototype.slice.call(arguments);

  return funcArray.reduce(
    (prevFunc, nextFunc) => 
      () => {
        const args = Array.prototype.slice.call(arguments);
        
        return nextFunc(prevFunc.apply(null, args));
      }
    )
}

function comp() {
  const funcArr = Array.prototype.slice.call(arguments);

  return funcArr.reduce(
    function(prevFunc, nextFunc) {
      return function() {
        const args = Array.prototype.slice.call(arguments);

        return nextFunc(prevFunc.apply(null, args));
      }
    }
  )
}