Stdle #33 · closures · 2026-07-09
What does this Rust snippet output?
A past puzzle — fully playable. 4 attempts, hints on wrong guesses.
fn main() { let f: fn(i32) -> i32 = |x| x + 1; println!("{}", f(41));}Closures
Stdle #33 · closures · 2026-07-09
A past puzzle — fully playable. 4 attempts, hints on wrong guesses.
fn main() { let f: fn(i32) -> i32 = |x| x + 1; println!("{}", f(41));}