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Firstly, regular expression constants are better be placed outside of component function. Otherwise they get recreated each change event. Second, is there a purpose of changing value? If we enter the if statement, we will not change the state, so it will affect nothing. And we don't need to return value; in the end, too. Third, in current configuration there ...


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std::string Replace(std::string text, Why are you passing text by value ? Best practice now is to pass via string_view instead. std::function<std::string(std::smatch)> func) Passing a std::function is less efficient than making it a template like all the algorithms and various places in the standard library. If this is just a toy example for the ...


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There are a lot easier ways to print your name and age, but I'll assume you know that :) When you pass non-POD arguments into functions it is usually more efficient to pass them as references, because it means you don't create a copy of them. (POD => Plain Old Data: int, char, etc). When you pass an argument by reference it can introduce confusion, is ...


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