40: Merge Commits Are Evil

Welcome to Code Completion, Episode 40! We are a group of iOS developers and educators hoping to share what we love most about development, Apple technology, and completing your code!

Follow us @CodeCompletion on Twitter to hear about our upcoming livestreams, videos, and other content.

Today, we discuss:

• Code Completion Club: https://codecompletion.io/jointheclub


• Indie App Spotlight, with a new app for you to check out:
  
  
  • Billsly by Clayton Watkins (@CaptainnClayton): https://apps.apple.com/us/app/billsly/id1560270556
  
  


• The need for git as a modern developer


• Basic usage of git


• MacOS versioning is similar but different


• Using Git as a note taking tool (in the command line, preferably) to get more comfortable with it.


• Good commit messages and staging


• Setting up a global git ignore file


• Git Apps:
  
  
  • GitHub Desktop: https://desktop.github.com
  
  
  • Git Tower: https://www.git-tower.com/mac
  
  
  • Fork: https://git-fork.com
  
  
  • Git Kracken: https://www.gitkraken.com
  
  


• What a Pull request is, and why they are useful
  
  
  • GitHub: https://github.com
  
  
  • GitLab: https://about.gitlab.com
  
  
  • Bitbucket: https://bitbucket.org/product
  
  


• Doing a self reviews before having others review your code


• Setting up branch protections to keep from messing up


• Dimitri’s Git starter link and wiki: https://github.com/lambdaschool/ios-git-setup


• Bonus: Spooning by Bitbucket: https://www.youtube.com/watch?v=8wUOUmeulNs

Also, join us for #CompleteTheCode, a segment that tests your knowledge on Swift, Apple, and all things development!

Your hosts for this week:

• Spencer Curtis


• Dimitri Bouniol

Be sure to also sign up to our monthly newsletter, where we will recap the topics we discussed, reveal the answers to #CompleteTheCode, and share even more things we learned in between episodes.

You are what makes this show possible, so please be sure to share this with your friends and family who are also interested in any part of the app development process.

Sponsor

This week's episode of Code Completion is brought to you by Huuungry. Search for Huuungry on the iOS App Store today to give it a try: https://apps.apple.com/app/apple-store/id1448552588?pt=14724&ct=CodeCompletion1&mt=8

Complete the Code

What’s the best way to check if the file that is passed in exists or not?

// Assuming these steps need to be performed in the order
// they are presented, how would you improve this code?
let results = array
    .map { $0.path }
    .filter { $0.hasPrefix("/Documents") }
    .compactMap { $0.components(separatedBy: "/").last }
    .prefix(maxEntries)

Be sure to tweet us with hashtag #CompleteTheCode if you know the answer!