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Replacing foreach loop with LINQ

, 5 Dec 2011
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Advantages of replacing a foreach loop with LINQ

In some cases LINQ can simplify iterative code, and in those cases, it's a good practice to switch iterative code into LINQ.

Regular foreach loop:
var bestStudents = new List<Student>();
foreach (var s in students)
{
    if (s.Grade > 9)
    {
        bestStudents.Add(s);
    }
}
 
LINQ way:
//LINQ query which generate the same result as the foreach loop above
var bestStudents = students.Where(s => s.Grade > 9).ToList();

Why does it look better with LINQ?

  1. Removing the if statement reduces the complexity (even if just a little)
  2. For me, declarative code is often more readable

Reference: LINQ Tutorial.
 
Click here for more LINQ examples

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

Delashmate
Software Developer GE
Israel Israel
I am Software Developer at GE company for more than 2 years,
 
I created LINQTutorial.net since I didn't found any other good dedicate LINQ tutorial

Comments and Discussions

 
GeneralReason for my vote of 2 I already posted... but the reason i... PinmvpPaulo Zemek9-Nov-11 1:45 

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