Energy.Subtraction Operator

public static Energy operator -(
	Energy value1,
	Energy value2
)

Public Shared Operator - ( 
	value1 As Energy,
	value2 As Energy
) As Energy

public:
static Energy operator -(
	Energy value1, 
	Energy value2
)

static let inline (-)
        value1 : Energy * 
        value2 : Energy  : Energy

JavaScript does not support overloaded operators.