I went with the obvious approach: a container div, prev/next buttons, and tracking an index to know which slide is visible.
Start by clarifying requirements (e.g., autoplay, infinite loop, touch support) and then outline a modular architecture using plain JavaScript, CSS, and HTML. Focus on the core mechanics: DOM manipulation, event handling, and state management, while discussing trade-offs like accessibility and performance.
Pro tip: Emphasize progressive enhancement and accessibility from the start—Amazon values customer obsession, so mention how you'd ensure the carousel works without JavaScript and is screen-reader friendly.
Ask about expected features (autoplay, infinite loop, touch/swipe, responsive) and constraints (browser support, performance). This shows you think before coding.
Propose a semantic HTML structure (e.g., a list of slides) and CSS for layout and transitions. Mention using CSS transforms for smooth animations and avoiding layout thrashing.
Describe a class or module that manages state (current index), handles navigation (next/prev), and updates the DOM. Discuss event delegation and efficient reflows.
Include keyboard navigation, ARIA roles, and touch events. Mention autoplay with pause on hover/focus and how to handle reduced motion preferences.
Talk about trade-offs (e.g., infinite loop complexity vs. simple wrap-around) and how you'd test (unit tests with Jest, manual cross-browser testing).
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.