Stdle #115 · quirks · 2026-09-23
What does this JavaScript snippet output?
A past puzzle — fully playable. 4 attempts, hints on wrong guesses.
const a = [1, 2];const r = a.concat([3, 4]);console.log(a.length, r.length);Quirks
Stdle #115 · quirks · 2026-09-23
A past puzzle — fully playable. 4 attempts, hints on wrong guesses.
const a = [1, 2];const r = a.concat([3, 4]);console.log(a.length, r.length);