TypeScript Version: 2.0.3 / nightly (2.1.0-dev.201xxxxx)

Code

// A self-contained demonstration of the problem follows...
In your Quick start documentation (https://www.typescriptlang.org/docs/tutorial.html), could you please fix or make more clear on the bottom of the page in the Classes section that Interface and Class in the example ARE NOT RELATED, and that the nature of TypeScript is that it can be even an empty object without instantiating any class at all like so:

greeter({ firstname: "John", lastname: "White" });

Since coming from a partially OOP background, it confused me a lot how come we instantiate a Student class object, but the function expets a Person interface object, and there is no connection between them except for same property names. Cheers

Expected behavior:

Actual behavior: