Back
Close

Using C# LINQ - A Practical Overview

player_one
1638K views

Exercise - Extract a single element

Using what you have learned about First(), Last(), ElementAt(), and Single() (and their variations) modify the methods in this exercise to extract the desired element from the provided sequence of strings.

For reference, here are some examples of LINQ methods that return a single element from the sequence:

List<double> doubles = new List<double> { 2.0, 2.1, 2.2, 2.3 };
double whatsThis = doubles.First();

List<double> doubles = new List<double> { 2.0, 2.1, 2.2, 2.3 };
double whatsThis = doubles.Last(val => val < 2.1);


List<double> doubles = new List<double> { 2.0, 2.1, 2.2, 2.3 };
double whatsThis = doubles.ElementAtOrDefault(4);
Extract a Single Value Exercise
Create your playground on Tech.io
This playground was created on Tech.io, our hands-on, knowledge-sharing platform for developers.
Go to tech.io