Tuples in C# are lightweight data structures that allow you to group multiple related values into a single object. Unlike classes or structs, tuples don't require defining a specific type beforehand. Tuples are useful when you need to return multiple values from a method or store related data without creating a custom class or struct.
Tuples are great for simple scenarios where you need a temporary container for related values, but for more structured or reusable scenarios, using custom classes or structs is generally recommended.
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Every time I heard about tuples in C# I remember a question a had in an interview question that asked how to return two different types in a single method. Since then I never forgot tuples in my life hehe (of course I did not know how to answer :))