We've looked at JavaScript's conventions and norms, but most rules have a caveat that "this could vary" or "this isn't technically required." So, how do we make sense of our code in a malleable, opinion-driven environment? One answer: linting.
Simply put, linting refers to the process of running your code through predefined rules to ensure that not only is it syntactically correct, but it also adheres to proper style rules. This isn't a practice limited to JavaScript; you may have linted your Python code, too. In modern JavaScript, linting has come to be seen as a best practice to ensure your code is consistent. Two of the main style guides in the community are AirBnB (https://github.com/airbnb/javascript) and Google (https://google.github.io/styleguide/jsguide.html). Your code editor probably supports using a linter, but we won't go into using them in practice right now, as each editor varies...
