What's faster: JS comparison vs C++ bool

[SeeLook]

Hi,
To make this question clear enough I need to describe it more,
but long story short at first:

if (GlobalObject.someClass.type === SomeClass.SomeType)

vs

if (GlobalObject.someClass.someType)

Which one call is better (faster, clearer, proper)?

... and to continue explanation:
SomeClass is QGadget - it has to be light:

class SomeClass
{
  Q_GADGET

   Q_PROPERTY(EnumType type READ type)
   Q_PROPERTY(bool someType READ someType)
  // etc... for all enumerator types

public:
  SomeClass();
  enum EnumType {
    SomeType, OtherType, YetAnotherType
  }
  Q_ENUM(EnumType)

  EnumType type() const { return m_type; }

  bool someType() const { return m_type == SomeType; }
  // etc... for all enumerator types

private:
  EnumType m_type;
}

And GlobalObject is QObject derivative available in all QML code and has someClass property (member)

Does it make any difference, what do you think?

[J.Hilk]

@SeeLook hard to tell without benchmarking it

I would say if (GlobalObject.someClass.type === SomeClass.SomeType) is slower, as the JS-Engine does not do inlining and this has 2 calls more than if (GlobalObject.someClass.someType)

---

actually, modern JavaScript does indeed do inlining, huh, you learn something new every time.
But as far as I can tell, its v8 or later and Qt is using v7 -> QML does no inlining

[SeeLook]

@J-Hilk Thank You for the answer.

For me if (GlobalObject.someClass.someType) is more neat as well,
so +2 for it :-)

[SeeLook]

In fact, there is one more option for this riddle:

if (GlobalObject.someClass.type === 0) // SomeClass.SomeType

and that comment is mandatory part of the code.

It makes one call less but it is clumsy.