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API reference

Rust API reference

Ownership, types and the Cargo toolchain

Last updated 1 November 2026

Identifiers: 73
With full guides: 0
Types: 6

Topics covered

Ownership
Types
Traits
Errors
Async
Cargo

Class

Name	What it does
`String`	Class
`Vec`	Class
`Option`	Class
`Result`	Class
`Box`	Class
`Rc`	Class
`Arc`	Class
`RefCell`	Class
`Cell`	Class
`Mutex`	Class
`RwLock`	Class
`HashMap`	Class
`HashSet`	Class
`BTreeMap`	Class
`Cow`	Class

Command

Name	What it does
`cargo new`	Command
`cargo build`	Command
`cargo run`	Command
`cargo test`	Command
`cargo check`	Command
`cargo clippy`	Command
`cargo fmt`	Command
`cargo add`	Command
`cargo doc`	Command
`cargo publish`	Command
`rustup update`	Command

Method

Name	What it does
`Option::unwrap`	Method
`Option::map`	Method
`Result::map_err`	Method
`Vec::push`	Method
`Vec::iter`	Method
`String::from`	Method
`Iterator::collect`	Method
`Iterator::filter`	Method
`Iterator::fold`	Method

Concept

Name	What it does
`Ownership`	Concept
`Borrowing`	Concept
`Lifetimes`	Concept
`Pattern matching`	Concept
`Generics`	Concept
`Enums`	Concept
`async and await`	Concept
`Tokio runtime`	Concept
`unsafe`	Concept
`Modules and crates`	Concept
`The ? operator`	Concept
`Closures`	Concept
`Smart pointers`	Concept

Macro

Name	What it does
`println!`	Macro
`vec!`	Macro
`format!`	Macro
`panic!`	Macro
`assert!`	Macro
`assert_eq!`	Macro
`dbg!`	Macro
`matches!`	Macro
`todo!`	Macro
`derive`	Macro

Trait

Name	What it does
`Clone`	Trait
`Copy`	Trait
`Debug`	Trait
`Display`	Trait
`Default`	Trait
`Iterator`	Trait
`IntoIterator`	Trait
`From`	Trait
`Into`	Trait
`Drop`	Trait
`Send`	Trait
`Sync`	Trait
`Deref`	Trait
`Future`	Trait
`Error`	Trait

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