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isNull
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The isNull function returns true if the specified argument {obj} is
#void; otherwise, false is returned. When to use The isNull function is used to determine if an object is equal to #void.
Returns true if the object is Null (equal to #void), otherwise, false is returned otherwise
Here are a number of links to Lambda coding examples which contain this instruction in various use cases.
Here are the links to the data types of the function arguments. Here are also a number of links to functions having arguments with any of these data types.
You can always talk with the AIS at aiserver.sourceforge.net.
Name
Description
AIS Types obj Must be either a numeric object or a Void Data Type Object. Number, Void
Returns:
Examples
Argument Types
Number
Boolean
Void
How do I contact the AIS team?