In a general way, pattern matching is a way to compare contents in predefined formats in an expression. The format is nothing but a combination of different matches.
In C# 7.0, pattern matching is a feature. With the use of this feature, we can implement method dispatch on properties other than the type of an object.
Pattern matching supports various expressions; let's discuss these with code-examples.
Patterns can be constant patterns: Type patterns or Var patterns.