\<bookmark_value\>IsMissing function\</bookmark_value\>

IsMissing Function

Tests if a function is called with an optional parameter.

See also: Optional


IsMissing( ArgumentName )


\<emph\>ArgumentName:\</emph\> the name of an optional argument.

If the IsMissing function is called by the ArgumentName, then True is returned.

See also Examples.

Error codes:

5 Invalid procedure call

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