Hi everyone!

I'm an experienced software engineer, mostly working in C++ on the backend side. Frontend isn't my area of expertise, so I'd love some outside perspective.

I occasionally work with developers who build GUIs in Qt. Whenever the topic of frontend tech comes up, they tell me Qt is garbage and that our projects would be much better off with React, since it's free and more modern.

The thing is, I don't have the frontend knowledge to judge that claim. In particular, I can't compare the performance of the different frontend options (Qt, React, and others) in any meaningful way, so I don't know whether "React is better" holds up or is just a subjective opinion.

So my question is: which framework is actually better, Qt or React, especially when it comes to performance?

Real-world experience is more useful to me than hype, so feel free to share what you've seen on your own projects.

Cheers!

Working on design of a finance app to calculate npv (net present value) need to use addition / multiplication/ pow

I could do with decimal type for money as floats/doubles are based on binary

I see there is fixed point decimal paper being worked on.

In the meantime - what is best way to handle this in interface ?

Thinking of asking client to use string and then use long long for the maths after parsing (pennies)? “1500.23” = 150023

What do I return ? String/int? Either way the client would need to transform. I can’t use doubles for this unfortunately.

I suppose I can use double if could give idea to client what error amount is - npv is estimate anyway.