LINQ Fundamentals

LINQ (Language Integrated Query) lets you query collections using expressive, composable syntax. It improves readability and reduces boilerplate loops.

Why LINQ is powerful

LINQ (Language Integrated Query) lets you query collections using expressive, composable syntax. It improves readability and reduces boilerplate loops.

Filtering and projection with LINQ

Common LINQ operations

using System.Linq;

var scores = new List<int> { 78, 92, 85, 97 };

var topScores = scores.Where(s => s >= 90).ToList();
var doubled = scores.Select(s => s * 2).ToList();
var average = scores.Average();

Console.WriteLine(string.Join(", ", topScores));
Console.WriteLine(average);