[berlinquin]

Have been using a version of this recently: with C++ in Visual Studio you can add `#pragma region X` that will let you expand/collapse regions of code in the same file. Can be useful for top-level organization.

[smusamashah]

C# natively supports `#region <name>` and `#endregion`. IntelliJ supports the same using comments like `//#region <name>`.

[cglong]

TypeScript IDEs also typically support this via `// #region <name>` and `// #endregion`.