Learn Rust Easily #7 - Enums & Pattern Matching
Enums are one of Rust's most powerful features — and the thing that most often makes programmers fall in love with the language. Where structs say "a value has all of these fields," enums say "a value is one of these variants." Combined with Rust's match keyword, they give you compiler-checked certainty that every case is handled. In lesson seven of Rust From Scratch, we cover defining enums (including variants that carry data), meeting the two most important enums in the standard library — Option and Result — and learning the full range of match and if let patterns.
📚 In this video:
• Defining enums — bare, tuple, and struct-like variants
• Option T — Rust's alternative to null
• Pattern matching on enums with match
• Exhaustiveness — why missing a case won't compile
• if let for concise single-variant matching
• A first taste of Result T, E
• Richer patterns: destructuring, guards, bindings
⏱️ Chapters
0:00 Intro
1:35 Defining enums
3:35 Option — Rust's null
5:45 Match with enums
7:55 if let
9:25 Result — a taste
11:20 Richer patterns
13:10 Recap
🦀 Next up — Lesson 08: Cargo & Crates. Subscribe so you don't miss it.
💬 Questions or topics you want covered? Drop them in the comments.
#rust #rustlang #programming #learntocode #rustenum