java script in Max 4 Live: scope of variables, …

/*
This is "global" all throughout Live/different M4L devices.  
Could conflict with other devices/developer's stuff.
*/
accessibleeverywhere = 10


/*
This is accessible in the context of the local script and local functions, since 
it is declared outside of a function.
*/
var anywhereinscript = 20


function foo() {
	// This is only in this function
     var localtofunction = 30
}


/*
The Max JS Global() object type allows *scoped* sharing of values between multiple JS instances and also Max.
*/
var g = new Global("jsGlobal") 
g.arbitraryproperty1 = 40
g.arbitraryproperty2 = 50


/*
Assume the #1 argument to this JS (e.g. jsargument[1]) is a device specific name like "---myDevice".

This gives you a way to reference a device-specific scope for variables that you can use 
in multiple JS / Max objects.
Note that hardcoding "---myDevice" instead of jsarguments[1] won't work, 
because the "---" magic doesn't happen inside JS scripts.
*/
var devicespace = new Global( jsarguments[1] )
devicespace.something = 60


/*
But you could also use a Dict() in a similar way, which may be easier to interface with Max code.
*/
var d = new Dict( jsarguments[1] + "-dict" )
d.replace("something", 70)