what is delegate and lambda expression?

Answer 1

Delegate :
A delegate is a type. It is a very special type because an instance of this type can point to a method. A event is a instance of a delegate. When calling a event you start a method.

https://www.sololearn.com/discuss/1289856/?ref=app
https://www.sololearn.com/discuss/1057848/?ref=app
https://www.sololearn.com/discuss/1709943/?ref=app

https://www.youtube.com/watch?v=LDgQ-spnrYY

Lambda :
This is a short hand naming conventions for frequently used code
Every where where you see " =>"
That is a Lambda
arr.ToList().ForEach( x => Console.WriteLine (x));

https://www.codingame.com/playgrounds/213/using-c-linq---a-practical-overview/lambda-expressions
Func<int, int> multiplyByFive = num => num * 5;

https://www.c-sharpcorner.com/UploadFile/bd6c67/lambda-expressions-in-C-Sharp/
https://www.tutorialspoint.com/Lambda-Expressions-in-Chash

Answer 2

thank you very much 💚