extension-methods

Extension Indexers in C# 15: Finally, this[] on Types You Don't Own

C# 15 rounds out extension members with indexers, letting you add this[] syntax to types you can't modify. Here's how the syntax works, how resolution is prioritised against real indexers, and where the preview feature still bites.

Extension Members in C# 14: Properties, Operators, and Static Extensions

C# 14 overhauls extension syntax with extension blocks that support properties, operators, and static members. Here's how the new syntax works, when to migrate, and what you still can't do.