What is New in C# 7.0?

C# is a simple, modern, object-oriented programming language with support for component-oriented programming. It constructs robust applications using automatic garbage collection of unused objects, proper exception handling, and type-safe design.

Along with Visual Studio 2017, Microsoft introduces the next version of C#, that is, C# 7.0, which provides several changes and new features for developers to build rapid and robust applications without spending more time on code.

In this chapter, we will learn about the following new features introduced in C# 7.0, guided through the code:

• Local functions or nested functions
• Literal improvements in C# 7.0
• The new digit separators
• Getting to know about pattern matching
• The ref returns and locals
• New changes to tuples
• Changes to the throw expression
• Changes to Expression-bodied members
• New changes to the out variables
• Getting to know about the Deconstruction syntax
• Uses of the generalized async return types