Currying

currying

function curry( fn ) {
  var arity = fn.length;
  return (function resolver() {
    var memory = Array.prototype.slice.call( arguments );
    return function() {
      var local = memory.slice(), next;
      Array.prototype.push.apply( local, arguments );
      next = local.length >= arity ? fn : resolver;
      return next.apply( null, local );
    };
  }());
}