When we should use IN keyword in C#?

Accepted answer

Hi Sanjit,

It is Statement Keywords in C#. The in keyword is used in four contexts:

1. generic type parameters in generic interfaces and delegates.

2. As a parameter modifier, which lets you pass an argument to a method by reference rather than by value.

3. foreach statements.

4. from/join clauses in LINQ query expressions for more details gothrough.

https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/in

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Hi Sanjit Kumar, Go through this link https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/in-parameter-modifier

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Read this https://www.c-sharpcorner.com/article/c-sharp-7-2-in-parameter-and-performance/

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