Better alternatives for implementing the Cube tick method

[winstonrc]

I've been following along the book just fine writing the code in TypeScript instead of JavaScript, and have a question regarding The cube.tick Method section of the material.

The material mentions:

However, we shouldn’t get into the habit of doing this carelessly since in certain situations it can cause performance issues. We’ll only allow ourselves to do this here as the alternatives are more complex.

I'm curious what the alternatives would be because I have to add // @ts-ignore to the line before the cube.tick function. I'd love to be pointed in the direction of better ways to implement this functionality to deepen my learning and apply it in a more TypeScript safe way.