How to emulate "window" object in Nodejs?

Question

How to emulate "window" object in Nodejs?

When running in a browser, everything attached to the "window" object will automatically become global object. How can I create an object similar to that in Nodejs?

mySpecialObject.foo = 9;
var f = function() { console.log(foo); };
f();  // This should print "9" to console

javascript
node.js
v8

Answer 1

you can attach global stuff to process instead of window

Answer 2

You can use the predefined object global for that purpose. If you define foo as a property of the global object, it will be available in all modules used after that.

For example, in app.js:

var http = require('http');
var foo = require('./foo');

http.createServer(function (req, res) {
  //Define the variable in global scope.
  global.foobar = 9;
  foo.bar();    
}).listen(1337, '127.0.0.1');

And in foo.js:

exports.bar = function() {
  console.log(foobar);
}

Make sure you don't use the var keyword as the global object is already defined. For documentation, check out: http://nodejs.org/api/globals.html#globals_global

Answer 3

You can use the GLOBAL object.

fruit = 'banana';
console.log(GLOBAL.fruit); // prints 'banana'

var car = 'volks';
console.log(GLOBAL.car); // prints undefined

Answer 4

I've come to this simple solution:

var mySpecialObject = global;

In normal browser:

var mySpecialObject = this;  // Run this at global scope