Technical Screen

Phone Screen Piano Keys Coding Challenge

RobloxFrontend Engineer · Senior+ · Technical Screen · Aug 2026

Phone Interview Coding/design question: Piano Keys Implement a UI with 6 piano keys (C, D, E, F, G, A) that responds to user input. Must be built with vanilla HTML/CSS/JavaScript only — no frameworks or third-party libraries. When a key is pressed and held, it should show a pressed state (i.e., add the pre-styled .key.active class to the corresponding element); when released, it should immediatel…

Shared by a candidate · reported Aug 2026. Interview formats change; use it as a guide, not a script.