please help

Question

Create a variable named allBlueBirds and write a LINQ query using the All method to assign a boolean value if all of the Bird objects in the birds list have the value "Blue" in the Color property.

CodeChallenge.cs

var birds = new List<Bird>
{
    new Bird { Name = "Cardinal", Color = "Red", Sightings = 3 },
    new Bird { Name =  "Dove", Color = "White", Sightings = 2 },
    new Bird { Name =  "Robin", Color = "Red", Sightings = 5 },
    new Bird { Name =  "Canary", Color = "Yellow", Sightings = 0 },
    new Bird { Name =  "Blue Jay", Color = "Blue", Sightings = 1 },
    new Bird { Name =  "Crow", Color = "Black", Sightings = 11 },
    new Bird { Name =  "Pidgeon", Color = "White", Sightings = 10 }
};
var anyBlueBirds = false; if (birds.Any(b => b.Color == "Blue")) { anyBlueBirds = true; }
var allBlueBirds = false; if (birds.all(b => b.Color == "Blue"))

Answer 1 · 2017-09-27T20:40:14Z

September 27, 2017 8:40pm

You're almost there. But you still need to add the code block after the "if" statement to perform the assignment, similar to what you did on the previous line for task 1.

And you need to fix your spelling of the method name "all" (with a lower-case "a") to be "All" (with a capital "A").

Answer 2 · 2019-01-02T19:37:35Z

January 2, 2019 7:37pm

Remember, your Any, All, and Contains methods all return a boolean result. So for the previous quiz question, it was:

var anyBlueBirds = birds.Any(b=>b.Color == "Blue");

(Rhetorical question for those unsure: ) Based on that, what do you suspect the correct syntax would be for "All"?

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tafadzwa manzunzu

tafadzwa manzunzu

please help

2 Answers

Steven Parker

Steven Parker

Kevin Gates

Kevin Gates