1 min lesson
Build-round sprint
Tell someone how to act on this idea: "The front-end build round judges two things at once: correctness and polish."
Step 1 of 4
The front-end build round judges two things at once: correctness and polish. Clean React or SolidJS plus CSS that's also genuinely nice to look at, with a component API a teammate would actually want to use.
Treat the rubric as a gap finder, not a score to admire. Mark the weakest proof, turn it into one practice rep and keep the artifact you would show an interviewer.
This is a longer drill than the coding screen because the deliverable is bigger. Give yourself 90 minutes and a single non-trivial component. The order you build in is the whole game.
Learn more
Full explanation
The 90-Minute Sprint, in Order
Interactive diagram. Step through it with the Next and Previous controls below, or Tab to a region to read its detail.
Lock the API before you build the body - that's the gate that prevents a mid-clock refactor.