You’d be able to go back through your commit history and either revert your code back to the last commit you made when you first got that part working or go back and see what your code looked like at that point in time. You have no idea what you changed, everything looks to be the same and you don’t remember editing that line, but alas, it isn’t working how you want it anymore. There will come a time when you are working on a project and you FINALLY get something just right (this would be a good time to commit), and then maybe 30 seconds to a few days later it breaks. As you gain experience, you will develop a better feel for what should be committed! In other words, make a commit if you get a piece of code you are working on to function like you want it to, fix a typo, or fix a bug. This will create a timeline of your progress and show that your finished code didn’t appear out of nowhere. When writing code, it’s considered best practice to commit every time you have a meaningful change in the code. That version of your code up to that point will be saved for you to revert back to or look back at. It makes commit messages easier for other developers to read.Ī good way to view a commit is like a “snapshot” of your code at the moment that it was made. This is a best practice we highly recommend following. Separates the subject from the body with a new/blank line.Contains a body that provides a concise yet clear description of why the commit needed to be made (e.g., “Screen readers won’t read the images to users with disabilities without this information”).Provides a subject that specifies your code’s action (e.g., “Add missing link and alt text to the company’s logo”).Screen readers won't read the images to users with disabilities without this informationĪhh, that’s better! :) Now, developers can gain a better understanding of this commit message because it does the following: Now that we learned the secret to creating a good commit message, let’s try and fix the commit message from earlier: Add missing link and alt text to the company's logo Describe the problem your commit solves and how. This is the change I made to the codebase.Ī concise yet clear description of what you did. Note: GitHub has a 72-character limit so we recommend keeping your commits’ subject to within this amount. In other words, a commit message describes what problem your changes solve and how it solves them.Įffective commits consist of two separate parts: a subject, and a body: SubjectĪ brief summary of the change you made to the project. A good commit message will explain the why behind your changes. Here’s an example of a bad commit message: fix a bugĮven though it describes what you did, the message is too vague, which leaves the other developers on your team confused. When it comes to writing commits, it is crucial to know how to write them effectively. You likely won’t remember your thought process and changes made when initially writing out the code. Having a good commit message history will also be helpful if you come back to a project you were working on after stepping away from it for a while. This is useful if a bug is found in the code that needs to be fixed! Having a good commit message history will allow you (or other developers working on your code) to quickly see what changes were made and why. Having good commits as a novice developer will help you stand out. When you are applying for jobs, employers will look through your projects on GitHub and they will look through your commit history. Yes! Let me give you a quick list of reasons why: Why meaningful commit messages are importantĪre commit messages so important they deserve their own lesson?.How to write a meaningful commit message.This section contains a general overview of topics that you will learn in this lesson. This lesson will explain the importance of good commit messages, how to write them, when to commit, and why having a history of good commits is so important! Lesson overview
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