[Vuejs]-Updating data in multiple places without reloading the page

Use Vuex or a global event bus depending on the complexity of your application.

If your application is starting to become more enriched with Vue components that need to communicate beyond simple child/parent and parent/child communications, then Vuex should be a good fit.

I am not going to go into depth about the technicalities because that information can be found in the documentation. Good luck.