Kamal,
Thanks for that - it worked fine. I'm confused by your point about 'unless the array exists as a property of the object'? My situation is that I have a NetManager class method being passed either a single network connection name or an array of networks to connect to. There is no storage of the array so no property is needed because the array is passed as reference.

>Hi Nigel,
>
>You can use TYPE('aArrayName[1]') == 'U' to figure out if an array does not exist. Though in your case the problem would be different because you cannot pass an array as a parameter to an object's method unless the array exists as a property of the object.
>
>>I am trying to create a method in a class which can received as a parameter either two variables or a single array. I can't find any way of identifying if a variable is of type 'Array'. The TYPE() function only returns the type of the contents. Does anybody know how I can do this?? TIA,