The 'Data' monad/tuple thingy in JavaScript

data.js

var Data = function(first, second, third, fourth, fifth, sixth, seventh) {
  return function(iterator) {
    return iterator(first, second, third, fourth, fifth, sixth, seventh);
  };
};

// or more elegantly
var Data = function(a, b, c, d, e, f, g) {
  return function(fn) {
    return fn(a, b, c, e, f, g);
  };
};

var Data = (a, b, c, d, e, f, g) => fn => fn(a, b, c, d, e, f, g);