Conclusion Heads up... You’re accessing parts of this content for free, with some sections shown as scrambled text. Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan. Unlock now Heads up... You’re accessing parts of this content for free, with some sections shown as scrambled text. Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan. Unlock now In this lesson, you reviewed these basic error-handling topics: Handling errors with optionals including try? and try!. Handling errors from throwing functions in do-catch blocks. Potential issues with throw-catch.