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Write yourself a Git!
This article is an attempt at explaining the Git version control system from the bottom up, that is, starting at the most fundamental level moving up from there. This does not sound too easy, and has been attempted multiple times with questionable success. But there's an easy way: all it takes to understand Git internals is to reimplement Git from scratch.
Android Performance (Udacity)
. By the end of this course, you'll be able to perform exploratory tests, run profiling tools, use outputs to navigate to problematic code, and design a plan of attack to mitigate poor performance. You'll also gain a higher level of understanding about how program code and the Android platform interact, which will help you optimize for performance in the future.
How to Use Git and GitHub (Udacity)
This course covers the essentials of using the version control system Git. You'll be able to create a new Git repo, commit changes, and review the commit history of an existing repo. You'll also learn how to keep your commits organized using tags and branches and you'll master the art of merging changes by crushing those pesky merge conflicts. Oh no! Was a mistake made along the way? Learn how to edit commits, revert changes, or even delete commits.