Add Extension method : Extension Method « LINQ

Add Extension method : Extension Method « LINQ « C# / C Sharp

 

using System;

using System.Collections;

using System.Collections.Generic;

using System.Text;

using System.IO;

using System.Reflection;

using System.Linq;

using System.Xml;

using System.Xml.Linq;

public static class Extensions {

    public static string SpaceToUnderscore(this string source) {

        char[] cArray = source.ToCharArray();

        string result = null;



        foreach (char c in cArray) {

            if (Char.IsWhiteSpace(c))

                result += "_";

            else

                result += c;

        }



        return result;

    }

}

class Program {

    static void Main(string[] args) {

        string s = "This is a test";

        Console.WriteLine(s.SpaceToUnderscore());

    }

}

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