BLCKBIRDS
   Swift Programming
            For Beginners
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   Important: 
      We strongly recommend you to not only read this guide but to try  
      everything yourself immediately. This helps strengthen your skills! 
  ❗You can use Xcode playgrounds to try out and practice the 
      learned concepts. Read this tutorial on how to create and use 
      playgrounds in Xcode.
    Content
    Chapter 1: Variables, Constants & data types 
    Chapter 2: Operators, if and switch statements 
    Chapter 3: For and while loops, arrays and dictionaries 
    Chapter 4: Functions 
    Chapter 5: Classes 
    Chapter 6: Optionals