How can I add an object property to the global object in rhino javascript

Question

I have some properties in an object that I would like to add to the global namespace. In javascript on the browser I could just add it to the window object like so:

var myObject = {
  foo : function() {
    alert("hi");
  }
  // and many more properties
};

for (property in myObject) {
  window[property] = myObject[property];
}

// now I can just call foo()
foo();

But since rhino doesn't have the global window object I can't do that. Is there an equivalent object or some other way to accomplish this?

Answer 1

You could use this, which refers to the global object if the current function is not called as a method of an object.

Answer 2

You could just define your own window object as a top-level variable:

var window = {};

You can then assign values to it as you please. ("window" probably isn't the best variable name in this situation, though.)

See also: http://stackoverflow.com/questions/964392/can-i-create-a-window-object-for-javascript-running-in-the-java6-rhino-script-e

Answer 3

Here's how I've done it in the past:

// Rhino setup
Context jsContext = Context.enter();
Scriptable globalScope = jsContext.initStandardObjects();

// Define global variable
Object globalVarValue = "my value";
globalScope.put("globalVarName", globalScope, globalVarValue);

Answer 4

I found this rather brilliant solution at NCZOnline He proposes a function that return the global object no matter what context

function getGlobal(){
  return (function(){
    return this;
    }).call(null);
}

then you can call

var glob = getGlobal();

glob will then return [object global] in Rhino.