In this article, I will demonstrate the exciting new additions to LINQ extension methods introduced in.NET 6: MinBy() and MaxBy(). These methods offer a streamlined approach to extracting the minimum or maximum value in a generic sequence according to a specified key selector function. Let's explore how these powerful tools enhance data manipulation and simplify code, providing efficient solutions for selecting extreme values within collections.
.NET 6: LINQ EXTENSION METHODS MinBY() AND MaxBY()
Let's create a record type for students and create a list of students to check MinBy() and MaxBy() in Linq,
Create a record for the student
public record Student(int Id, string Name, DateTime JoiningDate, int Marks);
Create data for students with the above properties
var students = new List<Student>()
{
new Student(1, "Jignesh", new DateTime(2022, 3, 15), 500),
new Student(2, "Dharmik", new DateTime(2022, 3, 12), 550),
new Student(3, "Priyal", new DateTime(2021, 3, 10), 299),
new Student(4, "Rohit", new DateTime(2022, 4, 18), 535),
new Student(4, "Tilak", new DateTime(2022, 4, 18), 300)
};
foreach (var item in students)
{
Console.WriteLine($"Id :{ item.Id} | Name : { item.Name} | Joing Date : {item.JoiningDate.ToShortDateString()} | Marks : {item.Marks}");
}
Let's check and print all students to see whether data was created or not for the student list
Before the introduction of MinBy() and MaxBy() in .NET 6, to get the minimum or maximum records from a list involved slightly diffent aproach. Typically, developers would resort to methods like OrderBy() or OrderByDescending() followed by First() or Last() to achieve similar results. With the introduction of new extension methods MinBy() and MaxBy() in .NET 6, the process becomes more elegant and efficient. These new LINQ extension methods have the provision of extracting the minimum or maximum record from a collection based on a specified key
How do I find a top-performing student from the list of students before .Net 6?
var topScorer = students.OrderByDescending(x => x.Marks).First();
Console.WriteLine($"Top Scorer in the class : Id : {topScorer.Id} Name : {topScorer.Name}");
How do I find a top-performing student from the list of students in Net 6 and the latest version using MaxBy()?
var topScorer = students.MaxBy(x => x.Marks);
Console.WriteLine($"Top Scorer in the class : Id : {topScorer?.Id} Name : {topScorer?.Name} Who scrored {topScorer?.Marks} marks");
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