Module show_notes::e004

Functionalized

• Date: October 29, 2015
• Subject: Functions, methods, closures, and function as arguments!
• Audio

Notes

This week’s episode covers the basics of all sorts of functions: normal functions, methods, and closures.

Closures

• An explanation (in Ruby) by Martin Fowler
• Rust book
• Rust by Example
• “What is a closure?” (Progammers Stack Exchange) – the first answer is the best, but the second answer may be a helpful stepping stone for people just getting their heads around this and coming from OOP languages like C++ or Java (even though I disagree with the explanation in some ways).
• “What is a closure?” (Stack Overflow) – careful, thorough answer using JavaScript as an example.

Links

• Exercism (hat tip: Lechindanier on GitHub)
• Rust Learning
• Rust and Swift (viii)

Follow/Support

• New Rustacean:
  • Twitter: @newrustacean
    • App.net: @newrustacean
    • Patreon
    • Dwolla
  • Email: hello@newrustacean.com
• Chris Krycho
  • Twitter: @chriskrycho
    • App.net: @chriskrycho

Modules

• struct_container 🔒
  Create a module so we can see public/private behavior.

Functions

• apply_function_to_i64
  Shows how to take a function as an argument.
• demonstrate_closure_environment
  Shows how closures can act on elements within their environment.
• demonstrate_function_arguments
  Show how to call a function with a function as an argument.
• demonstrate_methods
  Shows how to use both struct and instance methods.