Stdle #91 · classes · 2026-09-05
What does this TypeScript snippet output?
A past puzzle — fully playable. 4 attempts, hints on wrong guesses.
interface Shape { area(): number }class Sq implements Shape { constructor(public s: number){} area(){return this.s**2;} }console.log(new Sq(3) instanceof Sq, 'area' in new Sq(3));Classes