Generics
Trait Objects in Rust and Why Some Traits Cannot Be One
A trait object is a pointer plus a vtable, which lets one Vec hold many types. See how to build one, what the cost is, and why some traits cannot be used this way.
7 min read
Library
Everything you need to level up your coding skills.
Generics
Trait Bounds and Where Clauses in Rust Explained Made Clear
Trait bounds say what a generic type must be able to do. Learn the T: Trait syntax, where clauses, multiple bounds and when each form reads better.
7 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
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
Rust
Rust Enums and Why They Replace Class Hierarchies Explained
Rust enums carry data in each variant, which replaces the class hierarchy and the nullable field. See the syntax, match, methods, and where it beats inheritance.
9 min read
GenericsGuide
Traits Generics and Trait Objects and How to Choose
A guide to choosing between generics, impl Trait, trait objects and enums in Rust, with one example solved four ways and the costs of each.
18 min read
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