Foreign Function Interface
==========================

Importing Values
----------------

The `foreign import` keyword declares a value which is defined in Javascript, and its type::

  foreign import pow :: Number -> Number -> Number

Inline Javascript
-----------------

A foreign import declaration may optionally contain its definition in Javascript as a string literal. If this is provided, the string will be inserted directly into the generated Javascript before the current module definition::

  foreign import pow "function pow(n) {\
                     \  return function(p) {\
                     \    return Math.pow(n, p);\
                     \  };\
                     \}" :: Number -> Number -> Number

Importing Types
---------------

To declare a new type with no constructors, use `foreign import data` and provide the kind::

  foreign import data DOM :: *
  	
  foreign import document :: { 
    createElement :: String -> DOM  
  }