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There are a lot of reasons I love Ruby. It makes me a happy programmer. Apple recently released its latest programming language into the wild, Swift. Swift is an object oriented-programming language with a functional personality. I will give you the whirlwind tour of what I have learned in my dabbling with the language. We will compare constructs in Swift to similar implementations in Ruby and contrast the differences. We’re talking language and syntax here, the good stuff. No need to bring your iOS or Cocoa chops :wink:. Perhaps we have established a trajectory to find happiness developing native applications as well?
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In this video titled "Rubyist meets Swift," speaker Jay Hayes presents an insightful analysis of the Swift programming language, drawing comparisons to Ruby, highlighting similarities and differences in syntax and constructs. The discussion begins with an introduction to Swift's error handling, noting that rather than exceptions, Swift simply crashes upon errors, requiring developers to be confident about dictionary key retrieval. Key points in the presentation include: - **Error Handling**: Swift does not use exceptions; if a key is fetched from a dictionary that does not exist, the program terminates instead. - **Dictionary Type Extension**: Hayes illustrates defining a fetch method for a dictionary, highlighting the use of generics for key and value types. - **Optional Values and Closures**: The fetch method incorporates optional default values and closures, allowing flexibility when retrieving values from a dictionary. - **Subscripts and Coalescing Operator**: The method leverages the coalescing operator for optional binding, which simplifies the error management process by chaining optional values together. - **Comparison with Ruby**: Hayes emphasizes the similarities between Swift's dictionary fetch method and Ruby's hash fetch method, noting that they function in nearly identical ways but may differ slightly in implementation. - **Overall Learning**: The presentation enlightens viewers on Swift's type system and its functionalities like protocols and classes just briefly, encouraging further exploration through Apple's resources. - **Additional Resources and Engagement**: Hayes mentions boot camps at Big Nerd Ranch, his blog comparing Ruby and Swift, as well as previous talks, suggesting comprehensive resources for those interested in diving deeper into Swift. In conclusion, this presentation not only encapsulates the fundamental aspects of Swift, particularly its error handling and dictionary functionalities but also positions the language as an appealing choice for developers who are familiar with Ruby, leading them to a rewarding journey in native application development.
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