De-mystifying JSON
How to look at a JSON shape and translate it to Rust structs and enums.
Blog
Posts, notes, and digests — building the things, mostly in Rust
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Organizing Code: Crates, Packages, and Modules
How Rust programs are organized with crates, packages, and modules, including file structure, visibility, paths, and the use keyword.
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The Result Type
How Rust handles recoverable errors with the Result type, including pattern matching, the ? operator, and common methods like map_err and unwrap_or.
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The Option Type
How Rust uses the Option type instead of null values, with pattern matching, if let, and common methods like unwrap, map, and unwrap_or.
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Pattern Matching with `match`
How to use Rust's match expression for exhaustive pattern matching, including enums with data, the wildcard pattern, if let, and Option.
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Ownership and Borrowing
How Rust manages memory through ownership, moving, copying, cloning, borrowing, and references, with the rules that make your programs safe without a garbage collector.
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Methods and Associated Functions
How to add behavior to structs in Rust with methods and associated functions using impl blocks.
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Problem Decomposition: A Cheatsheet
Struggling to decompose problems into smaller steps? This is the cheatsheet for you.
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Programming Shapes: A Pattern Library
Four repeating patterns that cover most programming problems, no matter how different they look on the surface.
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The Enum Type
How to define and use enums in Rust, including variants with data and an introduction to pattern matching with match.