Please explain it!

Hi,Can you explain this piece of code?

I'm confused!

Why we are for each compare new instance of 'CaseInsensitiveComparer'?

What is ObjectDumper?!

ublic void Linq36()
{
    string[] words = { "aPPLE", "AbAcUs", "bRaNcH", "BlUeBeRrY", "ClOvEr", "cHeRry" };
 
    var sortedWords =
        words.OrderBy(a => a.Length)
             .ThenBy(a => a, new CaseInsensitiveComparer());
 
    ObjectDumper.Write(sortedWords);
}
 
public class CaseInsensitiveComparer : IComparer<string>
{
    public int Compare(string x, string y)
    {
        return string.Compare(x, y, StringComparison.OrdinalIgnoreCase);
    }
}