FYI, initializing variables by reference

Bob Sneidar bobs at twft.com
Mon Jun 18 15:53:39 CDT 2012


You are saying these variables survive the command call because they are called by reference? Interesting! I would have thought that this would throw a compile error because the variables do not exist in the calling handler. 

Bob


On Jun 18, 2012, at 7:24 AM, Peter M. Brigham wrote:

> For some reason I never realized that you can use referenced variables in a command handler -- I was thinking of them only when using functions. In case others haven't discovered it, you can, for instance, do something like this:
> 
> on prepareInvoice tID
>  initializeVars tID, tName, tDOB, tAddr, tPhone
>  -- now you can go on and do something
>  --     with the initialized variables
>  -- ...
> end prepareInvoice
> 
> on initializeVars tID, @tName, @tDOB, @tAddr, @tPhone
>  put fetchData(tID) into tArray
>  put tArray["name"] into tName 
>  put tArray["DOB"] into tDOB
>  put tArray["ID"] into tID
>  put tArray["address"] into tAddr 
>  put tArray["phone"] into tPhone
> end initializeVars
> 
> This may not be new to some, but it was new to me.
> 
> -- Peter
> 
> Peter M. Brigham
> pmbrig at gmail.com
> http://home.comcast.net/~pmbrig
> 
> 
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