MatSubtraction Operator (Scalar, Mat)

public static MatExpr operator -(
	Scalar s,
	Mat a
)

Public Shared Operator - ( 
	s As Scalar,
	a As Mat
) As MatExpr

public:
static MatExpr^ operator -(
	Scalar s, 
	Mat^ a
)

static let inline (-)
        s : Scalar * 
        a : Mat  : MatExpr

JavaScript does not support overloaded operators.