Steven Giesel • 1/12/2026

Collection Expression Arguments in C# 15+

Read Original

This article discusses a proposal for C# 15+ to enhance collection expressions by allowing developers to pass arguments, such as initial capacity for a List or a custom comparer for a HashSet, directly within the expression syntax. It explains the current limitations and the potential performance benefits of this new feature.

0 comments
#c #compiler optimization #Dotnet
Collection Expression Arguments in C# 15+

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser

Top of the Week

1
The Beautiful Web
Jens Oliver Meiert • 2 votes
2
When your coding agent doesn’t understand your project, you’ll get junk
Benjamin Cane • 1 votes
3
LLM Use in the Python Source Code
Miguel Grinberg • 1 votes
4
Wagon’s algorithm in Python
John D. Cook • 1 votes
5
An example conversation with Claude Code
Dumm Zeuch • 1 votes