Interface is a means to achieve OOP. 2 more languages pops off my head: C#: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/interfac

Interface is a means to achieve OOP. 2 more languages pops off my head: C#: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/interface https://docs.microsoft.com/en-us/dotnet/csharp/language-refe... TypeScript: https://www.typescriptlang.org/docs/handbook/interfaces.html https://www.typescriptlang.org/docs/handbook/interfaces.html