Regex.Escape vs JsonConvert.Serialize | C# Online Compiler

Regex.Escape vs JsonConvert.Serialize by crowdy

using System;
using System.Text.RegularExpressions;
using Newtonsoft.Json;
					
public class Program
{
	public static void Main()
	{
		string[] strs = new string[] {"\\", "\"", "\n", "", null};
		Console.WriteLine("Hello World");
		
		foreach (string str in strs)
		{
			Console.WriteLine(JsonConvert.SerializeObject(str));
			Console.WriteLine( String.Format("\"{0}\"", Regex.Escape(str)));
			Console.WriteLine("==================");
		}
	}
}

 
using System;
using System.Text.RegularExpressions;
using Newtonsoft.Json;
                    
public class Program
{
    public static void Main()
    {
        string[] strs = new string[] {"\\", "\"", "\n", "", null};
        Console.WriteLine("Hello World");
        
        foreach (string str in strs)
        {
            Console.WriteLine(JsonConvert.SerializeObject(str));
            Console.WriteLine( String.Format("\"{0}\"", Regex.Escape(str)));
            Console.WriteLine("==================");
        }
    }
}

Compilation error (line 8, col 1): The label 'https' is a duplicate
Compilation error (line 9, col 1): The label 'https' is a duplicate
Compilation error (line 10, col 1): The label 'https' is a duplicate
Compilation error (line 11, col 1): The label 'https' is a duplicate
Compilation error (line 12, col 1): The label 'https' is a duplicate
Compilation error (line 13, col 1): The label 'https' is a duplicate
Compilation error (line 14, col 1): The label 'https' is a duplicate
Compilation error (line 15, col 1): The label 'https' is a duplicate
Compilation error (line 16, col 1): The label 'https' is a duplicate
Compilation error (line 17, col 1): The label 'https' is a duplicate
Compilation error (line 18, col 1): The label 'https' is a duplicate
Compilation error (line 19, col 1): The label 'https' is a duplicate
Compilation error (line 20, col 1): The label 'https' is a duplicate
Compilation error (line 21, col 1): The label 'https' is a duplicate
Compilation error (line 22, col 1): The label 'https' is a duplicate
Compilation error (line 23, col 1): The label 'https' is a duplicate
Compilation error (line 24, col 1): The label 'https' is a duplicate
Compilation error (line 25, col 1): The label 'https' is a duplicate
Compilation error (line 26, col 1): The label 'https' is a duplicate
Compilation error (line 27, col 1): The label 'https' is a duplicate
Compilation error (line 28, col 1): The label 'https' is a duplicate
Compilation error (line 29, col 1): The label 'https' is a duplicate
Compilation error (line 30, col 1): The label 'https' is a duplicate
Compilation error (line 31, col 1): The label 'https' is a duplicate
Compilation error (line 32, col 1): The label 'https' is a duplicate
Compilation error (line 33, col 1): The label 'https' is a duplicate
Compilation error (line 34, col 1): The label 'https' is a duplicate

Last Run:	4:09:14 am
Compile:	0s
Execute:	0.158s
Memory:	0b
CPU:	0s

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