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71,830 PointsLINQ Method Syntax challenge
In the preceding video the LINQ query
from b in birds
where b.Color == "Red"
select b;
is refactored in 3 different ways:
birds.Where((b) => b.Color == "Red");
birds.Where((b) => { return b.Color == "Red"; });
birds.Where(b => b.Color == "Red");
I've tried all 3 variants in the challenge and for each I get the error message: Bummer! Did you use
And that's it. Just Did you use
Did I use what?
I'm currently out of thoughts? If anyone has a suggestion it would be welcome! Thanks.
using System.Collections.Generic;
using System.Linq;
namespace Treehouse.CodeChallenges
{
public class NumberAnalysis
{
private List<int> _numbers;
public NumberAnalysis()
{
_numbers = new List<int> { 2, 4, 6, 8, 10 };
}
public IEnumerable<int> NumbersGreaterThanFive()
{
//return from n in _numbers where n > 5 select n; //LINQ query
//return _numbers.Where((n) => n > 5); //version 1
//return _numbers.Where((n) => { return n > 5; }); //version 2a
//_numbers.Where((n) => { return n > 5; }); //version 2b
return _numbers.Where(n => n > 5); //version 3
}
}
}
1 Answer
Steven Parker
231,198 PointsCongratulations, you've discovered a bug ("Did you use"). You might want to report this to Treehouse Support.
But James has the right idea. I also had trouble with commented code in this course.
James Churchill
Treehouse TeacherJames Churchill
Treehouse TeacherDid you try removing your commented out code from the
NumbersGreaterThanFive
method?