C# Online Compiler | .NET Fiddle

<no name> by Anonymous

namespace lab
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.Write("give me your name:");
            string name = Console.ReadLine();
            Console.WriteLine($"{name}_");
           
            name = name.Trim();
            Console.WriteLine($"{name}_");

            name = name.Replace(" ", "  ");
            Console.WriteLine($"{name}_");

            if (name.Length > 5) name = name.Substring(0, 5);
            Console.WriteLine($"{name}_");
        }
    }
}

​x
 
namespace lab
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.Write("give me your name:");
            string name = Console.ReadLine();
            Console.WriteLine($"{name}_");
           
            name = name.Trim();
            Console.WriteLine($"{name}_");
​
            name = name.Replace(" ", "  ");
            Console.WriteLine($"{name}_");
​
            if (name.Length > 5) name = name.Substring(0, 5);
            Console.WriteLine($"{name}_");
        }
    }
}
​

Compilation error (line 7, col 13): The name 'Console' does not exist in the current context
Compilation error (line 8, col 27): The name 'Console' does not exist in the current context
Compilation error (line 9, col 13): The name 'Console' does not exist in the current context
Compilation error (line 12, col 13): The name 'Console' does not exist in the current context
Compilation error (line 15, col 13): The name 'Console' does not exist in the current context
Compilation error (line 18, col 13): The name 'Console' does not exist in the current context

Last Run:	2:29:37 pm
Compile:	0.006s
Execute:	0s
Memory:	0b
CPU:	0s

View IL Code