Variant

isXXX() [Variant class]

Returns true if the Variant is of the specified type.

// PROTOTYPES
bool isNull() const;
bool isBool() const;
bool isInt() const;
bool isUInt() const;
bool isInt64() const;
bool isUInt64() const;
bool isDouble() const;
bool isNumber() const;
bool isString() const;
bool isBuffer() const
bool isArray() const;
bool isMap() const;