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# Function Reference

# IsMap

Checks if a variable is a Map type.

IsMap ( variable )

## Parameters

variable | The variable/expression to check.

## Return Value

Success: | 1.
Failure: | 0 if parameter is not a Map variable.

## Remarks

Can be useful to validate map/non-map parameters to user-defined functions.
See language datatypes for a detailed description.

## Related

IsArray, IsBinary, IsBool, IsFloat, IsHWnd, IsInt, IsNumber, IsPtr, IsString, MapExists, VarGetType

## Example

    #include <MsgBoxConstants.au3>

    Local $mMap[] ; Declare a map.
    If IsMap($mMap) Then
        MsgBox($MB_SYSTEMMODAL, "", "The variable is a map")
    Else
        MsgBox($MB_SYSTEMMODAL, "", "The variable is not a map")
    EndIf