Advanced Combinations

Advanced Combinations

Some kinds of declarations can be combined across multiple declarations. For example, class C { } and interface C { } can co-exist and both contribute properties to the C types.

This is legal as long as it does not create a conflict. A general rule of thumb is that values always conflict with other values of the same name unless they are declared as namespaces, types will conflict if they are declared with a type alias declaration (type s = string), and namespaces never conflict.

Let’s see how this can be used.