Monthly Archives: September 2013

Sublime Text 2 keyboard shortcuts

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Until I started MakerSquare, I hadn’t used a OS X on a regular basis for about 2 years. Since MakerSquare, I’ve hardly touched Windows. I’ve remembered most of the keyboard shortcuts for OS X, and I’ve learned a few new ones for cool apps like SizeUp and the suggested text editor Sublime Text 2. However, I’ve been trying to figure out how to ‘jump to the end of a line’ aka how to replicate the function of the ‘end’ key for a couple weeks now, and just now figured it out. On accident. /o And now I realize why I was getting nowhere with Google. It’s on OS level shortcut, not specific to my text editor.

⌘ + left arrow

So there is the secret for anyone who is new to OS X and trying to find the ‘home’ key or the ‘end’ button. This appears to work for any program, including Sublime Text. And now, I can stop banging my head against this wall!

And for the record:

⌘ + right arrow

gets you to the beginning of the line, and up and down take you to the top and bottom of the entire document.

Github repo confusion

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Last week, I accidentally cloned down the wrong repo from GitHub. Whoops! I forked the repo for one of our class assignments, but I grabbed the URL for the MakerSquare repo, not mine. Fortunately, there was Google to the rescue!

Turns out, this is actually a little bit easy, though I read through the first 5 or so google search results before I did anything. This blog post was the most helpful because the commands were explained very nicely. It probably also helped that it was the 4th or so thing I read, so I was beginning to understand what I needed to do.

I did the following:

1. Check the current remote to make sure it is actually what I think it is

git origin -v

2. Remove the current origin

git remote rm origin

3. Add the new (correct!) origin

git remote add origin https://github.com/my_username/correct_repo.git

And tah-dah! All fixed! And in even nicer news, there is actually an even easier way of doing this that might be newer than said blog post. On GitHub Help, there is some information about using

git remote set-url

to do the same thing as the above step 3 and allows you to skip step 2 entirely.

Since this was an early mistake in a very simple single-branch repo, I didn’t have to take any other steps to make sure the HEAD was in the right spot or that any changes were correctly synced.

Arrays vs Hashes

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Here is a quick rundown on the difference between arrays and hashes! This is a pretty basic overview.

Arrays

The array is basically a list of values or items separated by commas. (CSV! My favorite data format!) Arrays are pretty straightforward.

Array = [ “a cool string”, 5, “another cool string”, “word”, 19983578923485]

Key facts about arrays:

  • Denoted by square brackets [  ]
  • Values are separated by commas [ value1, value2]
  • Order matters!
  • Access individual items via their index. ex: Array[0] gives the first item in the array.

Hashes

Hashes are cool! (And not just because they wear bowties.) A hash looks a little bit like an array, but with different brackets and each position in a hash is made up of a pair of things instead of a single item. The left side of the pair is called the key and the right side is the value. As in, it is KEY to remember the KEY otherwise you will not be able to access the VALUE. Also, the order of items in the array does not matter, because instead of looking up things by their position or index, we look up values in an array by their key.

Hash = { “pumpkin pie” => “is delicious”, 42 => “life the universe and everything”, :dog => “cute!”, nailpolish: “green” }

Key facts about hashes:

  • Denoted by curly brackets { }
  • Key/values pairs are separated by commas { hash1: key1, hash2: key2 } (new syntax) OR { hash1 => key1, hash2 => key2 } (old syntax)
  • Order doesn’t matter!
  • Access individual items via their key. ex: Hash[“key”]
  • That little equals-greater-than symbol that ties the key and value together? It is called a hash rocket! => => =>
  • Can contain symbols as keys! Those are the guys that are either start (or sometimes end with) a colon.