Category: .NET Core Blog

By using named arguments in C# we don’t have to match the ordering of parameter lists of called methods. Instead the … Continue reading Consider using named arguments in C# to increase readability of method calls

In .NET 6 Microsoft introduced the ArgumentException.ThrowIfNull guard clause and in .NET 7 (Preview 4) they have introduced ArgumentException.ThrowIfNullOrEmpty. Using … Continue reading .NET 7 to include new ThrowIfNullOrEmpty ArgumentException guard clause

In .NET 6 Microsoft have changed the algorithm used in System.Random and the performance improvements are crazy. Check out the … Continue reading System.Random is much faster in .NET 6 as Microsoft have changed underlying algorithm

Looks like Microsoft have pulled the null check !! operator from C#11. It had been included in C# 11 early … Continue reading Microsoft drops parameter null checking operator from C#11

There’s some pretty impressive performance improvements in .NET 6 when we are comparing arrays using the LINQ SequenceEqual method. The … Continue reading .NET 6 performance improvements when comparing two arrays using SequenceEquals

The performance improvements when cloning one SortedDictionary from another in .NET 6 compared to .NET 5 are amazing. I’m not … Continue reading Amazing performance improvement in .NET 6 when creating one SortedDictionary from another

Another small but welcome performance improvement in .NET 6 is with item retrieval times when using ImmutableList… It looks like … Continue reading ImmutableList performance improvements in .NET 6

Since C#8 we can use single line using declarations which will allow us to dispose of resources at the end of … Continue reading Using declarations in C#8+ can allow us to dispose of resources correctly without increasing nesting levels

In C# we can use aliases to provide shorthand references to types or namespaces. Aliases can be useful to tidy … Continue reading Using aliases in C# to provide shorthand references to types or namespaces

Does anyone actually use this variation of declaring variables? I rarely see it. I think its possibly useful in instances … Continue reading Declaring and setting multiple variables of the same type in the same statement in C#

The benchmarks (originally published on LinkedIn) below from Guilherme Ferreira show’s that there’s a big performance difference between using ToString() and … Continue reading ToString() v nameof() performance comparison when getting a string value from a enum option

If you’ve created long strings using string interpolation ($) and hit enter to prevent horizontal scroll Visual Studio will + … Continue reading Breaking up long interpolated strings can impact performance in .NET 6