Closures & Iterators

Based on The Rust Programming Language Ch. 13, Effective Rust, and the Iterator trait documentation.

When to Use This Skill

• Writing closures with correct capture semantics
• Understanding Fn, FnMut, FnOnce trait hierarchy
• Chaining iterator adaptors for data transformation
• Implementing Iterator for custom types
• Using collect() effectively
• Performance of iterator chains vs loops

Closures

Capture Modes