Question about counting through an Array

Question

int[] myArray = new int[7] {1,3,4,6,7,8,9};

Console.WriteLine("Enter a number");
int x = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Number of "+x+"in array is:");
Console.WriteLine(myArray.Count(n => n == x));

This code is find out how many times a number appears inside an array. The only part I dont understand is the last line, particularly "n => n == x".

Why could I have not just put 'x'?

Thanks

Answer 1

Hi
This is a major topic in c#
I think you should study about Linq and lambda expressions.

Read this

https://www.codeproject.com/Articles/33769/Basics-of-LINQ-Lamda-Expressions

Answer 2

Thank you, was just confused where the 'n' came from.

Answer 3

n=>n==x equals to "foreach (n in array) where n==x" sorrounded with the count function, in simple words give me the count of times where foreach n in array is equal to x