valueDiff for arrays?

[Richard Gaskin]

We have a command for obtaining the difference between arrays, where 
"difference" is defined as having different keys.

What I could use at the moment is a means of obtaining an array which is 
the difference is both keys present in one but not in the other, and 
values that are different for those elements where they keys are present 
in both.

I can write a loop for that, but it seems like it would be useful for 
others so I thought I'd ask if anyone here knows of a feature request in 
the DB for this.  If not I'll add one.

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
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