Syntax and styles are the way to keep your code clean and to share it. You can always do dirty work, but for maintainability of long term, it is a must to enforce some rules.
For this, we rely on Closure Linter, one of the Closure tools. It also requires Python to run. We already installed it with
pip install -r requirements; so, let's see how to use it. Later, we will see some alternatives.