Moderne licensed

Use LINQ CountBy()

Recipe IDOpenRewrite.Recipes.CSharp.Migration.Dotnet.Net9.UseLinqCountByArtifactOpenRewrite.Recipes.CSharp.Migration.Dotnet

Replace collection.GroupBy(selector).Select(g => g.Count()) with collection.CountBy(selector). Available since .NET 9.

Single recipemodernizationcsharpdotnetProprietary

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe OpenRewrite.Recipes.CSharp.Migration.Dotnet.Net9.UseLinqCountBy

If the recipe isn’t available locally, install it with:

mod config recipes nuget install OpenRewrite.Recipes.CSharp.Migration.Dotnet