DEV Community

Cover image for Static Lambda in C# 12 : Performance Improvement
.Net Labs
.Net Labs

Posted on

Static Lambda in C# 12 : Performance Improvement

A Static lambda, introduced in C# 12, is a lambda expression that cannot capture any variables from its enclosing scope. This means no closure class is generated, resulting in less memory allocation and potentially better performance.

Let’s work with some examples.

1. Sorting Collections:

Sorting a list of integers using a static lambda ensures no closures are created, reducing overhead during sorting

var numbers = new List<int> { 53, 31, 8, 1, 2,100,34,55,11,1 };
numbers.Sort(static (a, b) => a.CompareTo(b));
foreach (var item in numbers)
{
    Console.WriteLine(item);
}
Console.ReadKey();
Enter fullscreen mode Exit fullscreen mode

Result

Image description

2. Array Filtering
Filtering an array with a static lambda avoids capturing variables, making the filtering operation more efficient.

Console.WriteLine("--------Array Filtering-----------");
var array = new[] { 1, 2, 3, 4, 5 };
var filtered = Array.FindAll(array, static n => n > 3);
foreach (var item in filtered)
{
    Console.WriteLine(item);
}
Enter fullscreen mode Exit fullscreen mode

click here to see complete tutorial

Heroku

This site is built on Heroku

Join the ranks of developers at Salesforce, Airbase, DEV, and more who deploy their mission critical applications on Heroku. Sign up today and launch your first app!

Get Started

Top comments (0)

A Workflow Copilot. Tailored to You.

Pieces.app image

Our desktop app, with its intelligent copilot, streamlines coding by generating snippets, extracting code from screenshots, and accelerating problem-solving.

Read the docs

πŸ‘‹ Kindness is contagious

Please leave a ❀️ or a friendly comment on this post if you found it helpful!

Okay