Why Does Style Matter?

Matt Sumner

A few days ago, our Hound team asked a question that gave me pause: “Why does style matter? If we were to stop using style guides on all of our projects, what would your argument be for bringing them back?”

This reminded me of a recent client engagement. I found myself in a delicate situation while integrating with an existing developer team: They were not accustomed to following a style guide while working on a project. When we first pitched the benefits of introducing a style guide to the code base it appeared the whole team was on board.

Having a style guide makes a code base feel neat. It gives the impression of a team working well together towards a common goal, rather than individual developers working frantically and without purpose.

Working in a well-organized code base is like cooking in a clean kitchen. If things feel messy, it’s easy not to treat it with respect. If the formatting feels sloppy, it will tempt you to also be sloppy when it comes to readability, dependency management, and testing.

Inconsistent formatting is the first sign of a code base that nobody really cares about.

Joe Ferris

However, in practice, the team was not on board with a style guide. During code review developers defended each style violation as a special case. This tension was magnified by the fact that pull requests and code reviews were only introduced shortly before the style guide.

We went through the exhausting process of searching through pull requests for style violations and then having to explain the reasoning behind each guideline. This exercise made me feel awful and wasted time we could have spent developing features.

I hate doing work that can be automated. There are better things I can be doing than looking for double/single quotes or hex capitalization. As to why these things are important, it’s because I also hate to open a file with 3 different CSS color styles and spend 5 minutes deciding which one I should use and why.

Reda Lemeden

After a few pull requests I’d had enough and switched on Hound. When the team learned that a robot dog was going to start reviewing their code, their attitude completely changed. Instead of arguing about the style choice everyone simply made the changes. After all, it would be silly to be offended by a bot!

You know, having Hound on OSS is really nice. I can point to it for style problems without feeling like a jerk.

Jon Yurek

Manually reviewing code for style sucks. It’s time-intensive and socially awkward.

Let machines do low-level things for us without emotion. “Hound said it, not me.”

Dan Croak

In the end, the hard problem wasn’t convincing a team to implement a style guide but navigating the social complexities of enforcing it. So: Does style matter? Should we be using Hound?

Style guides and Hound greatly reduce the time I have to spend searching for style violations in PRs. That way I can focus on actual code smells, opportunities to ask question, or chances to share important information.

Britt Ballard

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