Using camelCase in javascript

[twitwi]

The current javascript code uses underscores, which might be familiar for the learners if they come e.g. from a Python lesson.

My understanding is that javascript uses a camelCase naming convention. If the change is meaningful, cat_image would become catImage and so on.

I'm not sure this is a first priority though.

[IsaKiko]

Good point. I agree though, not the first priority, but leaving this open for later :) Thanks!