Question

Could someone show me an “traditional” example of a calculation e.g. find average of peoples age, using a loop method and then an example using a lambda expression

Answer 1

Let’s see

class People
{
  int Age {get;set;}
};

var people = new List<People>() {...};

method loop

int sum = 0;
foreach(var p in people)
 sum += p.Age;
int average = sum / people.Count;

lambda

int average = people.Average(p => p.Age);