Concurrency
Why Tokio Spawn Needs a Static Future and How to Cope
tokio::spawn demands a future that owns its data. Learn why the compiler asks for static, what it does and does not mean, and four ways to share data with a task.
7 min read
Library
Everything you need to level up your coding skills.
Concurrency
Async and Await in Rust and What the Compiler Generates
async and await are syntax over futures. Learn what async blocks capture, where await may appear, how errors and ? work, and the common first mistakes.
7 min read
Rust
Rust Strings Explained and When to Use String or str
String owns its text and str is a borrowed view of text somewhere else. Use that split to pick the right type in function signatures and structs.
7 min read
Cargo Toml Explained Section by Section With Real Examples
Every section of Cargo.toml that matters, with an example: package metadata, dependency forms, dev and build dependencies, features, targets, profiles and lints.
6 min read
Performance
Rust Performance Basics Measure First Then Change One Thing
The handful of habits behind most Rust speed: build in release, avoid needless allocation, use iterators and slices, pick the right collection and measure before tuning.
2 min read
Systems
No Std Rust Explained and What You Lose Without Std
no_std removes the standard library and leaves core. See what you lose, what core and alloc still give you, and how to write crates that work both ways.
2 min read
Generics
Traits in Rust Explained as Shared Behavior With Examples
A trait is a named set of methods a type promises to provide. See how to define one, implement it, give it default methods and use it as a bound.
7 min read
Rust
Rust Collections Compared Vec HashMap HashSet and BTreeMap
Choose between Vec, VecDeque, HashMap, HashSet, BTreeMap and BTreeSet by the operations you need, with complexity, ordering and memory notes.
8 min read
Rust
Install Rust With Rustup and Set Up Your First Project
Install the Rust toolchain with rustup, check that it works, pick a channel and create your first Cargo project, with the three problems that stop most first installs.
7 min read
Rust
Closures in Rust and How Fn FnMut and FnOnce Differ
Closures capture their environment, and the Fn, FnMut and FnOnce traits describe how. See which one the compiler picks and which bound to write.
9 min read
Guide
Cargo Workspaces Features and Publishing a Crate Guide
A guide to Cargo beyond cargo build: the manifest, dependency versions, features, workspaces, profiles, MSRV, publishing and the errors you will meet along the way.
14 min read
Rust
Iterators in Rust From For Loops to Adapter Chains
Iterators are lazy: adapters like map and filter do nothing until a consumer such as collect or sum runs. See the chain, the traits and the common traps.
7 min read
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