test-example.md

[haaami01]

#![allow(unused)]
fn main() {
    let v = String::from("🗻∈🌏");

    assert_eq!(Some("🗻"), v.get(0..4));

    // indices not on UTF-8 sequence boundaries
    assert!(v.get(1..).is_none());
    assert!(v.get(..8).is_none());

    // out of bounds
    assert!(v.get(..42).is_none());
}

(Playground)

Errors:

   Compiling playground v0.0.1 (/playground)
    Finished release [optimized] target(s) in 2.87s
     Running `target/release/playground`