> I'm not a fan of APIs that surprise. It really depends on what you got used to. C++ was the first language, which, I would say, learned. I’m still surprised

> I'm not a fan of APIs that surprise. It really depends on what you got used to. C++ was the first language, which, I would say, learned. I’m still surprised to day that traversing a set is not in order by default. In this specific case, emplace should be your default option, and you should really know why that’s the case, and why you have this many options.