DotNet-FullStack-Dev

  26. Explain the Role of the "yield" Keyword The "yield" keyword in C# is used in the context of iterators to create an iterator block, which allows developers to define custom sequences or streams of data. It is commonly used with the "foreach" statement to produce a sequence of values lazily. When the "yield" keyword is encountered in a method, the state of the method is preserved, and the next value in the sequence is returned to the caller. The method can then resume execution from where it was paused. This lazy evaluation of sequences improves performance and memory efficiency, especially when dealing with large datasets. The "yield" keyword is a powerful tool for creating efficient and readable code when working with iterative processes in C#. 27. What is Asynchronous Programming and When to Use "async" and "await"? Asynchronous programming in C# enables developers to write non-blocking code, allowing tasks to

1. What is C# and its Key Features? C# (pronounced C-sharp) is a modern, object-oriented programming language developed by Microsoft. It is a key component of the .NET framework and is widely used for developing various applications, including web, desktop, and mobile applications. C# combines the power of C and C++ with the simplicity of Visual Basic. Its key features include being strongly-typed, versatile, and supporting both imperative and declarative programming paradigms. The language is designed to be simple, yet powerful, making it an excellent choice for building a wide range of applications. 2. Differentiate Between Value Types and Reference Types In C#, variables can be categorized into two types: value types and reference types. Value types directly contain their data, and examples include simple types like int, float, char, and structures. They are stored in the stack memory, providing fast access. Reference types, on the other hand, store a reference to the memory locatio