browser (front-end) and Node (back-end) environments.
To share code between two different environment, first need to understand what
are specific to browser and what are specific to Node. Shared code should be
agnostic to both environments.
In browser environment, there is an obvious one:
window object. In Node
environment, there are a few objects that are not globally defined in browser:
exports and more, see global objects. All
these variables work, but
exports is preferred.
Once environment is identified, then it is just the matter of writing style,
either browser style or Node style.
For example, writing in Node style by passing the
exports as the parameter:
To make it easier without concerning the backward compatibility:
this is the same as
window object in the browser environment.
One more thing, writing in CoffeeScript is even better, because the compiled
code is already wrapped in closure, fewer indentation is needed.
Everything will be encapsulated inside the