say hello!

say-hello.js

function say() {
  var slice = Array.prototype.slice;
  var concat = Array.prototype.concat;
  var strs = slice.call(arguments);
  var func = function() {
    strs = concat.call(strs, slice.call(arguments));
    return func;
  };
  func.toString = function() {
    return strs.join(' ');
  };
  return func;
}

say('hello')('world!')('what','up,')('Amit?');