AngularJS: Read route param from within controller

How can a parameter from an URL be read within an AngularJS controller?

Let's say I have an URL like http://localhost/var/:value and I want the value to be stored in a variable within the controller for the /var/:value URL.

I have tried using $routeParams.value and $route.current.params.value but $routeParams is undefined at the beginning and $route doesn't work.