Search and Count

A loop can count how many collection items match a target.

SearchCount.cs

using System;

class Program
{
    static void Main()
    {
        string target = ;
        string[] labels = { "red", "blue", "red", "gold" };
        int matches = 0;

        foreach (string label in labels)
        {
            if (label == target)
            {
                matches++;
            }
        }

        Console.WriteLine($"target={target}");
        Console.WriteLine($"matches={matches}");
    }
}

using System;

class Program
{
    static void Main()
    {
        string target = ;
        string[] labels = { "red", "blue", "red", "gold" };
        int matches = 0;

        foreach (string label in labels)
        {
            if (label == target)
            {
                matches++;
            }
        }

        Console.WriteLine($"target={target}");
        Console.WriteLine($"matches={matches}");
    }
}

using System;

class Program
{
    static void Main()
    {
        string target = ;
        string[] labels = { "red", "blue", "red", "gold" };
        int matches = 0;

        foreach (string label in labels)
        {
            if (label == target)
            {
                matches++;
            }
        }

        Console.WriteLine($"target={target}");
        Console.WriteLine($"matches={matches}");
    }
}

search A search checks each item until it finds or counts matches.