https://docs.google.com/presentation/d/1GQ-RC9-GugiYDiE7J99_t6uFv0c46DV-p3nuTLb4JA0/edit?ts=580fe39e#slide=id.g167e960765_0_0

• Version Control System

• helps manage different versions of stuff, usually text files.

• Tracks changes

• Allows easy collaboration, by making easy to track everyone's changes.

• Allows ease of use by not having you do this:

file.txt file2.txt file2-sams-changes.txt file2-sams-changes2-final-i-promise.txt

• a VCS Linus Torvalds, the guy who invented Git... And linux.

• There were version control systems before, way before git. Linux kernal was being tracked by one.

• The good:

  • You can back track.
  • It has a very good, extensive, cli
  • most devs use git
  • It makes collaborating on group coding projects, incredibly manageble.
  • Git is incredibly fast
  • Smart
  • Distributed.

• The bad:

  • Difficult to use.
  • The command line interface has a steep learning curve

• git init Creates a new git repo. Creates a hidden .git folder.
• git add Adds the file to the staging area to prepare it for a commit.
• git commit -m "my fun commit" Saves the current state of the file to git.
• git status checks if there have been any changes since the last commit, and checks if your version is synced up with a remote version.
• git log will log all of your history
• git log --oneline will do the same but with summaries.

• How often?

• Every 15 minutes
• When you add new functionality
• All the time
• Does it have to compile? NO
• All the time, All the time, All the time

• When you don't want to add a bug to your working project.

• A branch is a copy of the current state but on a different timeline.

• Merging when you merge two branches together to make one branch.

• git branch will show a list of all branches.

• you can create unlimited branches

• It's good to create a new branch for the following reasons:

  • New features (feature branch)
  • Testing code that code break something. Experimenting
  • Whatever reason you want.

• git merge to merge two branches togheter.

• A remote repo is a copy of your git repo on someone else's computer.
• git push is just a merge to a remote repo
• git pull is just a merge from a remote repo

• Don't use the Xcode source control tools

• Git cheat sheet: https://services.github.com/resources/
• The seven rules of a great git commit message: https://chris.beams.io/posts/git-commit/
• Tower Cheet sheet bundle https://git-tower.us2.list-manage.com/track/click?u=91c176fb902e8f939256a238e&id=0bd5a55b50&e=b591a8a119 (Contains cheat sheets for git, command line, Xcode, and more)

If you're looking for stretch work this week: https://gist.github.com/meech-ward/71eea16c35775d3234b28341287f5465

Is the C language with objects.

type name; name = value; type name = value;

int main(int argc, const char * argv[]) {
  @autoreleasepool {
    int leafs = 29;
  
    {
      {
        int something = 6;
        something++;
      }
      something--;
    }
    
    if (YES) {
      int ants = 29;
      NSLog(@"%i", leafs);
      NSLog(@"%i", ants);
    }
    
    NSLog(@"%i", leafs);
    NSLog(@"%i", ants);
  }
  return 0;
}

• int, double, BOOL, char, float, long, short, long long, NSInteger

no *

• NSString, NSArray, NSDictionary, NSDate

• NSString is immutable, so you can't change the value.
• Any method to modifies the string in any way, like uppercaseString, creates a brand new string.

https://koenig-media.raywenderlich.com/downloads/RW-Objective-C-Cheatsheet-v-1-5.pdf