Code Explainers

Code explainers tagged #borrowing

use std::borrow::Cow;
 
fn sanitize_filename(input: &str) -> Cow<'_, str> {
    if input.chars().all(|c| c.is_alphanumeric() || matches!(c, '.' | '-' | '_')) {

Avoiding allocations with Cow in Rust

clone-on-write borrowing zero-copy

Intermediate 7 steps

rust

use std::collections::HashMap;
 
#[derive(Debug, Clone)]
struct Order {

Aggregating Rust data with fold and entry

fold hashmap ownership

Intermediate 6 steps