Best way to repeat a string/character n times in C#

In C#, there is no such operator as in per or Python where you can easily repeat a string n times. But no worry, there is way that you can easily tot make the String to have thei function to repeat the string n times.

here is the code

  public static  class StringExtensions
  {
    public static string Repeat(this char charToRepeat, int repeat)
    {
      return new string(charToRepeat, repeat);
    }

    public static string Repeat(this string stringToRepeat, int repeat)
    {
      var builder = new StringBuilder(repeat * stringToRepeat.Length);

      for (int i = 0; i < repeat; i++)
      {
        builder.Append(stringToRepeat);
      }
      return builder.ToString();
    }
  }