Okay, we've got our application up and running in the browser, and we now want to see what happens when we make some code changes.
One of the best features of Meteor is reactive programming. The following extract is taken from http://docs.meteor.com/#/full/reactivity:
Meteor embraces the concept of reactive programming. This means that you can write your code in a simple imperative style, and the result will be automatically recalculated whenever data changes that your code depends on.
You don't have to restart the application or even refresh your browser. All changes ...