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LinkedIn Learning

Learning Higher-Order Functions with Swift

via LinkedIn Learning

Overview

Boost your Swift skills by adding higher-order functions to your coding. Explore the concepts behind higher-order functions like map and filter so you know when to apply each one.

By taking the time to truly grasp higher-order functions, you'll go from merely understanding the Swift language to mastering it. In this course, Bear Cahill shines a spotlight on higher-order functions in Swift, exploring what they are and how to use them. Bear starts by discussing the importance of higher-order functions and the basics of closures and functions as a basis for the rest of the course. He then covers a variety of higher-order functions—including sort, reduce, and compactMap—with a breakdown of the concepts behind each one (so you know when best to apply them). Learn about passing functions, closure optimizations, higher-order functions on strings, and more.

Syllabus

Introduction
  • Understanding higher-order functions
  • What you should know
1. Closures and Functions
  • What are closures?
  • Functions are closures
  • Closures and function types
  • Passing closures/functions as parameters
  • Type aliases for types
2. Basic Higher-Order Functions
  • Higher-order functions
  • Sort
  • Sorted
  • Foreach
3. Powerful Higher-Order Functions
  • Map
  • Filter
  • CompactMap
  • FlatMap
  • Reduce
  • Other higher-order functions
4. Using Higher Order Functions
  • Passing functions
  • Closure optimizations
  • Chaining higher-order functions
  • Higher-order functions on sets
  • Higher-order functions on dictionaries
  • Higher-order functions on strings
Conclusion
  • Next steps

Taught by

Bear Cahill

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