addyosmani

/**
    Code copyright Dustin Diaz and Ross Harmes, Pro JavaScript Design Patterns.
**/

// Constructor.
var Interface = function (name, methods) {
        if (arguments.length != 2) {
            throw new Error("Interface constructor called with " + arguments.length + "arguments, but expected exactly 2.");
        }
        this.name = name;

mebens

function lshift(x, by)
  return x * 2 ^ by
end

function rshift(x, by)
  return math.floor(x / 2 ^ by)
end

pguillory

var util = require('util')

function hook_stdout(callback) {
    var old_write = process.stdout.write

    process.stdout.write = (function(write) {
        return function(string, encoding, fd) {
            write.apply(process.stdout, arguments)
            callback(string, encoding, fd)
        }