isDirectory
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isDirectory
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The isDirectory Function returns true if the argument {arg} is a Directory;
otherwise, false is returned.
Usage The isDirectory function is used to query an object to see if it is of type
Directory. An alternate method would be to use the isType function using the Type
argument as type Directory.
(isDirectory arg) Returns true if arg is a Directory.
Returns false if arg is not a Directory.
Expression:
Arguments
Name
Type
Description Argument: arg Character, String, Symbol, Vector, BitVector, ByteVector, IntVector,
FltVector, ObjVector, Structure, Dictionary, Directory,
Matrix, NumMatrix, Integer, Float, Number, Complex
An Analytic Information Server object
Returns:
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.
| Character | String | Symbol | Vector |
| BitVector | ByteVector | IntVector | FltVector |
| ObjVector | Structure | Dictionary | Directory |
| Matrix | NumMatrix | Integer | Float |
| Number | Complex | Boolean |
Here are also a number of links to functions having arguments with any of these data types.
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Analytic Information Server (AIS)AIS Component Systems
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