How do you explicitly set a new property on `window` in TypeScript?

Question

I setup global namespaces for my objects by explicitly setting a property on window.

window.MyNamespace = window.MyNamespace || {};

Answer 1

Using

window["MyNamespace"] = window["MyNamespace"] || {};

should be alright as using string property, but if you really want to have a separated window and organised your code, you can extends window object:

interface MyNamespacedWindow extends Window {
    MyNamespace: object;
}

declare var window: MyNamespacedWindow;