Tell me I'm not crazy

Robert Brenstein rjb at
Mon Sep 19 16:55:57 EDT 2011

On 19.09.2011 at 15:30 Uhr -0500 Tereza Snyder apparently wrote:
>I recently encountered a problem implementing an undo function in a 
>script. I needed to compare two arrays to see if any values had 
>changed, like this:
>put (tArray1 <> tArray2) into sDirtyFlag
>so that sDirtyFlag would be true when the arrays failed to match. 
>However, sDirtyFlag was always false! No matter what!
>I put the two arrays into globals and compared them in the message 
>box, like this:
>put (gArray1 = gArray2), and the result was always correct. I 
>thought there was some hidden horrible error in my script that 
>dementia prevented me from seeing, until I realized that in my 
>script I was using "<>" not "=" to compare.

I think you want to compare the keys and the content for each key 
among the arrays. Unless I missed on some new feature in most recent 
livecodes, tArray always gives empty so comparing two arrays this way 
will always give same result when matching, exactly as you observed.


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