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$query.get("*:empty") or 
$query.get("*:empty#17_0_3_8e9027a") or 
$query.get("*:empty > class") or 
$query.get("*:empty[name*=class]")
A valid query pattern but the result of some patterns will be an empty list.
$query.get("*[name=:emptyx]")
Retrieve all elements whose name attribute is :emptyx
$query.get("*:emptyx") or 
$query.get("*:em")
An invalid query pattern.
  • If an attribute value of a MagicDraw an element is null, it is equivalent to an empty attribute value.

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