Swift 4 Cheat Sheet and Quick Reference

Download a handy 1-page PDF Swift Cheat Sheet and Quick Reference! By Ray Wenderlich.

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Swift 4 Cheat Sheet and Quick Reference

1 min

Update 8/4/17: Updated for Swift 4 and Xcode 9.

Sometimes when learning a new language it’s handy to have a cheat sheet as you are getting used to syntax.

So I’ve made this cheat sheet for learning Swift 4:

It summarizes the most important Swift syntax on one page to get you up to speed quickly, including:

  • Class Implementation
  • Methods
  • Creating/Using an Object
  • Declaring Variables
  • Control Flow
  • String Quick Examples
  • Array Quick Examples
  • Dictionary Quick Examples

You can also download a Swift 4 playground with the examples from the cheat sheet.

Let me know if you have any comments/suggestions on how to improve this. I’ll be updating this periodically as Swift changes.

Want to learn more? Check out out our new Swift 4 books – covering everything you need to know about Swift 4, iOS 11, and more!