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

Typscript does not perform typecheck on string properties.

window["newProperty"] = customObj;

Ideally, the global variable scenario should be avoided. I use it sometimes to debug an object in browser console.