Mapping Data with Func Delegates

Snippet

Mapping Data with Func Delegates

Func<T, TResult> is a built-in delegate type that represents a function taking one argument and returning a value. It allows you to pass logic as a parameter to other methods, facilitating functional programming patterns in C#.

snippet.cs

csharp

using System;
using System.Collections.Generic;
 
public class LambdaMapper {
    public static void Execute() {
        Func<int, int> square = x => x * x;
        List<int> numbers = new List<int> { 1, 2, 3, 4 };
        
        foreach (var num in numbers) {
            Console.WriteLine($"Square of {num}: {ApplyLogic(num, square)}");
        }
    }
 
    public static int ApplyLogic(int value, Func<int, int> logic) {
        return logic(value);
    }
}

Breakdown

Func<int, int> square = x => x * x;

Defines a lambda expression that squares an integer using the Func delegate signature.

public static int ApplyLogic(int value, Func<int, int> logic)

A higher-order function that accepts a delegate as an argument.

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Mapping Data with Func Delegates

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