func (val_ *Value) IsNull() bool { return val_.hasJsType(isNull, func(self unsafe.Pointer) bool { return C.V8_Value_IsNull(self) == 1 }) }
func (v *Value) IsNull() bool { return v.checkJsType(isNull, func(self unsafe.Pointer) bool { return C.V8_Value_IsNull(self) == 1 }) }