How to change the class depending on the page?

Question

meteor

Hello!
There is a helper in html .. depending on which page the user is on, you need to give him the right class. How to catch this event?
here is the html structure
https://jsfiddle.net/4tkzpqww/1/

Answer 1

if you are using iron router, Router.current().route.getName()then using Session.set/get to issue the desired
PS class in the case of flow routerFlowRouter.getRouteName();

Answer 2

Yes, great, it helped, thanks!
PS: for iron router