System Design

System design for building a Google-like autocomplete search component: debouncing, caching, keyboard navigation, race conditions, and mobile considerations.

System design for a Twitter/Facebook-style news feed: infinite scroll, virtualization, optimistic updates, real-time updates, lazy loading, and content ranking.

System design for Slack/WhatsApp-style chat: WebSocket management, message ordering, offline support, typing indicators, read receipts, search, and file uploads.

System design for an Amazon-style product page: image gallery and zoom, variant selection, pricing, add-to-cart, reviews, related products, SEO, and performance.

System design for an image carousel/slider: touch/swipe, lazy loading, preloading, responsive breakpoints, autoplay, accessibility, and animation performance.

System design for a custom video player like YouTube: controls, progress thumbnails, quality selection, subtitles, keyboard shortcuts, fullscreen, PiP, buffering, and adaptive bitrate (HLS/DASH).

System design for a spreadsheet like Google Sheets: virtualized grid, cell editing, formulas, undo/redo, selection, copy/paste, column/row resizing, and performance at scale.

System design for a Kanban board like Trello: drag-drop between columns, reordering, optimistic updates, animations, mobile touch, multi-select, undo, and real-time collaboration.

System design for toasts, badges, and notification center: queue management, auto-dismiss, priority, read/unread, real-time delivery (SSE/WebSocket), filtering, push notifications, and overflow behavior.

System design for a collaborative editor like Google Docs: real-time sync (CRDTs vs OT), cursor presence, rich text (contentEditable vs ProseMirror/Tiptap), conflict resolution, offline, version history, comments, and permissions.

System design for Typeform/Google Forms–style form builders: schema-driven rendering, field types, validation, conditional logic, multi-step wizard, and submission handling.

System design for Grafana/Datadog–style dashboards: chart rendering, time range selectors, auto-refresh, responsive grid, widgets, drill-down, and large dataset handling.

System design for Dropbox-style file upload: drag-and-drop, chunked uploads, progress, retry, pause/resume, thumbnail previews, and cancellation.

System design for Google Calendar–style apps: day/week/month views, event overlap handling, drag to create/resize, recurring events, timezones, and multi-calendar overlay.

System design for Shopify-style checkout: step validation gates, address autocomplete, Stripe Elements, order summary sidebar, form persistence, and mobile optimization.

System design for a search results page: filters, sorting, facets, infinite scroll vs pagination, and performance at scale.

System design for nested comments: replies, pagination, real-time updates, and moderation. Frontend architecture and data shape.

Explore the fundamental processes involved in web requests, including DNS resolution, load balancing, and caching, crucial for frontend developers.

Learn how to implement drag and drop functionality in your React applications using the DND Kit library, with practical examples and common pitfalls.