How does one send data which is in the side menu into one of the pages
You can use EventEmitter to emit/subscribe to events
https://angular.io/docs/js/latest/api/core/EventEmitter-class.html
or you can use some PubSub library/pattern.
In my case, I just wanted to transfer just an integer variable. Found out that I could use LocalStorage also
$rootScope this will help toget value from one controller to any more controllers