var MYGLOBALS = function() {
    var globals = {
        foo : "bar",
        batz : "blah"
    }
    return { getValue : function(s) {
            return globals[s];
        }
    }
}();
alert(MYGLOBALS.getValue("foo"));  // returns "bar"
alert(MYGLOBALS.getValue("notthere")); // returns undefined
MYGLOBALS.globals["batz"] = 'hardeehar'; // this will throw an exception as it should

var myLibName = (function() {
    var aPrivateVar;

    function aPrivateFunction() {}

    function accessorForPrivateVar() {
        return aPrivateVar;
    }

    // public interface:
    return {
        getPrivateVar : accessorForPrivateVar
    }
})();

var CONSTANTS = function() {
        var constants = { } ; //Initialize Global Space Here
        return {
            defineConstant: function(name,value)
            {
                if(constants[name])
                {
                   throw "Redeclaration of constant Not Allowed";
                }
            },
            getValue(name)
            {
               return constants[name];
            }
        } ;
    }() ;
    CONSTANTS.defineConstant('FOO','bar') ;
    print(CONSTANTS.getValue('FOO')) ; //Returns bar
    CONSTANTS.defineConstant('FOO','xyz') ; // throws exception as constant already defined
    CONSTANTS.getValue('XYZ') ; //returns undefined

const whatEver = 'Hello World!!!';

function foo(value){
 whatEver = value;
}

<div onclick="foo('New Value');">Change Me First</div>
<div onclick="alert(whatEver);">Then click me After: Should Be alert "Hello World!!!"</div>

const yourVar = 'your value';

navigator.pleaseDontChangeThis = 25;

// 'val' can be a string, integer, hash table, array, object
$.secret( 'in', 'secretName', val );

// or a function
$.secret( 'in', 'secretName', function( arg1, arg2, arg3 ){
  // do something here
});

var lang = $.secret( 'out', 'lang' );

$.secret( 'call', 'secretName', [ arg1, arg2, arg3 ]);
// or
$.secret( 'call', 'secretName', arg );

$.secret( 'clear', 'lang' );

private var myGlobal : myType;
function GetMyGlobal() : myType
{
return myGlobal;
}