jarsen

extension NSURL : StringLiteralConvertible {
    public class func convertFromStringLiteral(value: String) -> Self {
        return self(string: value)
    }
    
    public class func convertFromExtendedGraphemeClusterLiteral(value: String) -> Self {
        return self(string: value)
    }
}

jarsen

extension Array {
    func each (block : (T) -> ()) {
        for item in self {
            block(item)
        }
    }
}

animals.each(println)

jarsen

var animals = ["cow", "dog", "pig"]
var emoji = ["🐮", "🐶", "🐷"]

for (animal, pic) in Zip2(animals, emoji) {
    println("\(animal) \(pic)")
}

jarsen

My stuff is all based off the Xcode keymap—it helps you start with a little bit of familiarity.

Run is weird in appcode, cause it doesn't hit the breakpoints like Xcode's run does. What you want is Debug.
I have mapped Debug to ⌘+R, and Debug... to ⌘+⇧+R (Debug... is awesome!) (Also if you hold shift when you are in the Debug... menu you can run instead of debug)

I have remapped ⌘+T to Class... Effectively this allows me to open new tabs a la Sublime style where you hit command t for a new tab, and then enter the class name you want to open in that tab.

I don't like a lot of the ⌘+1 through ⌘+9 windows the way they are. I picked the ones I like and then remapped them to the lower keys for the ones I like to use a lot. I also hid all the tool window bars.

jarsen

# 1) open irb
# 2) `load "code_knight.rb"`
# 3) `knights = Marshal::load(Marshal::dump($knights))`
# 4) do the problems using your variable `knights`


# armor types - :light, :medium, :heavy
# ethical_alignment - :chaotic, :neutral, :lawful
# moral_alignment - :good, :neutral, :evil
class CodeKnight

jarsen

# TOP SECRET
# CodeNight CodeKnight Answer Key!!!

# Problem 0
# Use Enumerable.each to print out a string for each knight in the format of "Jason prefers a sword"

knights.each {|knight| puts "#{knight.name} prefers a #{knight.preferred_weapon}"}

# Problem 1
# Use Enumerable.find_all to find all knights with 50 or more health

jarsen

# example of incrementing all elements across a list
Enum.map [1,2,3], fn(x) -> x + 1 end
Enum.map [1,2,3], &1 + 1

jarsen

(module example racket
  (define (my_print str)
    (print str)))

(my_print "Hello, World!")

jarsen

defmodule Example do
  def my_puts str do
    IO.puts str
  end
end

Example.my_puts "Hello, World!"

jarsen

NSArray *albums = @[[Album albumWithName:@"Random Access Memories" price:9.99f],
          [Album albumWithName:@"Clarity" price:6.99f],
          [Album albumWithName:@"Weekend in America" price:7.99f],
          [Album albumWithName:@"Weekend in America" price:7.90f],
          [Album albumWithName:@"Bangarang EP" price:2.99f]];

// Reversing an Array
__unused NSArray *reversed = albums.reverseObjectEnumerator.allObjects;

// PREDICATES