How to applyedit with null or undefined value values

[aubinmaynard]

anyone know how to update a table with a blank attribute, for example:

      [HTML]results.features[0].attributes[curr] = "";   
           pointsOfInterest.applyEdits(null, results.features[0], null, null, function(error));
[/HTML]
I can apply edits, unless the value of the a particular fields is "" (i.e. undefined).  How can i erase the value of an attribute?

Thanks,

A