In C (and similar languages)

In C#, anonymous types are super handy for temporary structures, but they can't easily be returned from a method because they don't have a named type.

Example of an anonymous type:

csharp

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varresult = new { Name = "Alice", Age = 30 };

Inside a method? Fine.
Returning from a method? Not directly — unless you:

Options to Return Anonymous-Like Data

1. Return as object (not ideal, because you lose type safety)

csharp

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publicobject GetPerson() { return new { Name = "Alice", Age = 30 }; }

Downside: You can't easily use .Name and .Age without casting/reflection.

2. Use dynamic type

csharp

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publicdynamic GetPerson() { return new { Name = "Alice", Age = 30 }; }

Upside: Easier to access properties. Downside: No compile-time checking (errors at runtime if you mistype).

3. Define a real class instead

Best practice for returning structured data:

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publicclass PersonDto { public string Name { get; set; } public int Age { get; set; } } public PersonDto GetPerson() { return new PersonDto { Name = "Alice", Age = 30 }; }

• Strongly typed

• Safer

• Better for APIs, large projects, etc.

Quick Summary

OptionProsConsobjectQuick hackNo type safetydynamicEasy accessRuntime errorsReal classBest choiceSlightly more code

In Python, JavaScript, etc.

If you meant Python or JavaScript, they naturally return anonymous structures all the time:

• Python:

python

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defget_person(): return {"name": "Alice", "age": 30}

• JavaScript:

javascript

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functiongetPerson() { return { name: "Alice", age: 30 }; }

In dynamic languages, anonymous types are normal and no problem at all.

Refrence site https://stackoverflow.com