#modularize

I had a problem inserting a document into my Mongo database so I asked Larry for help. He never answered my question. Just dropped a 1 hour knowledge bomb on me!

1. Modularize / Organization / Maintainability. We organized my app into one constructor with prototype chained methods. Later, this allowed me to reuse code. We separated the interface from the data.

2. Read the API DOCS. Understand how your code works. He had me read the Google Maps API docs (read, not just look at the examples) and taught me how important it is to understand the API I'm using.

3. Comments. For your future self and your colleagues.  We added helpful comments.

4. Error handling for the users. When API's have a callback returning a error status make sure you handle each one properly.