Question

I am trying learn the use of lambda expressions and hence still struggling to implement after even reading the documentation and other various related articles on it.
So if I want to convert this following loop into a lambda expression then how would I go about doing it, I just need an approach to look how lambda expressions work.

Code:

var pc = Enumerable.Range(2, 100).ToList();
var j = 0;
while (j < pc.Count)
{
    Console.WriteLine(pc[j]);
    j++;
}

Answer 1

Enumerable.Range(2, 100).ToList().ForEach(p => Console.WriteLine(p));

Step by step explanation

1. Enumerable.Range makes a IEnumarable<int> starting from 2 having length 100. ie. items will be 2,3,4…..101.

2. .ToList() converts that IEnumerable to List. Why converting? so that we can use ForEach method of List.

3. Most Important for you ForEach(). As the name suggests it performs action on each item in list. In here each element of list is taken and put in a runtime variable p which ‘goes to’ => Console.WriteLine(p) to write on console.