[Javascript] Unexpected Result

[Mike Dougherty]

On Wed, Aug 4, 2010 at 2:51 AM, liorean <liorean at gmail.com> wrote:
>>> If you want to do the equivalent of passing around
>>> references, then you need to pass around a reference type from which
>>> you read a property, and store new values in a property of that
>>> object.
> Reference type means object, array, function mostly. Things that
> aren't value types/primitives.
>
>    QQ = $.a.LASTLOSER; // => 5
>    QQ[2] = 2; // => 2
>    QQ[2]; // => 2
>    $.a.LASTLOSER[2] // => 2

So how do we get an object reference to a single element of an array?
Is it possible?

var myArray = ['a','b','c'];
var refArray = myArray; /* this makes a reference to the object */
var pos1 = myArray[1];  /* this makes a value assignment to an
arbitrary variable */
refArray[0] = "X";  /* assign "X" to element 0 of refArray, which is
effectively an alias of myArray */
pos1 = "Y"; /* assign "Y" to an arbitrary variable */

alert( myArray.join(",") );  /* displays: X,b,c */

Is it possible to get references to primitive array elements?  If I
really needed to do this, would I have to make each element an object
so the array element references an object and a variable assigned the
element would also get the object reference?

var myObjArray = [ {"value":"a"},{"value":"b"},{"value":"c"} ];
var pos1 = myObjArray[1];
pos1.value = "X";

alert( myObjArray.toJSONString() );  /* or some other way to display a
complex object */