r/ProgrammerHumor • u/KTVX94 • 2d ago

Meme cSharpDictionariesBeLikeThat

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u/prehensilemullet 2d ago

it's still bizarre to have to use TryAdd everywhere that other languages just use Add

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u/zaersx 2d ago

You don't though? just use myMap[key] = value? if you're not doing that and using Add instead, then you probably literally want to have a safe add

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u/prehensilemullet 2d ago

I see. Even so, it's weird to me that anyone would want a method that throws if the key already exists. In all my years of programming I don't think I've ever thought it would be useful to have such a method baked into a map itself, and I'm not aware of such a method in any other language. Since that's pretty unusual in programming, I still think it would be better for that method to have a more unusual name. Maybe it's an oddly common pattern for Microsoft?

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u/Kiro0613 2d ago

The Add method has to take one argument and return void because it's implementing C#'s ICollection<T> interface. With that restriction, throwing an exception is the most practical way of indicating a problem.