gistfile1.js

// This works, but since it has to take `n, f1, ...` instead of `n, [f1, ...]`,
// we need to do a messy concat/apply at the end.
function pipeline(n) {
  var actions = rest(arguments);
  if (_.isEmpty(actions)) {
    return n;
  } else {
    return pipeline.apply(null, [first(actions)(n)].concat(rest(actions)));
  }
};