Using a `string` to store the ref for something you want to use programatically is a bad idea because its stringly typed:
- Its bad for refactoring
- Bad for maintainability (find references vs. string search)
So obviously its preferred to store the refs as members on the component. This is how to do it in TypeScript with a sample component:
Basically put them in an object called `ctrls` that is initialized to empty `{}` to begin with and then setup as needed using callbacks to refs in the `render` function 🌹.
