Bonus: Advanced Machine Coding Questions to Practice
Additional advanced questions: chess board, maze solver, LRU cache UI, and form builder.
Bonus: Advanced Machine Coding Questions to Practice
Here are additional advanced machine coding questions that may appear in harder interviews.
1. Chess Board UI
Build a chess board with piece placement and move validation.
Key features: 8x8 grid, piece rendering, click to select, valid move highlighting, basic move validation.
2. Maze Solver Visualizer
Build a grid maze and visualize BFS/DFS pathfinding.
Key features: grid with walls, start/end nodes, BFS/DFS animation, shortest path highlight.
3. LRU Cache Visualizer
Build a visual LRU cache with add, access, and eviction.
Key features: add item, access item (move to front), evict LRU (remove from back), visual queue display.
4. Form Builder
Build a drag-and-drop form builder (like Google Forms).
Key features: field types (text, number, select, checkbox), drag to reorder, preview, export JSON.
5. JSON Formatter and Viewer
Build a tool to format and explore JSON with collapsible tree view.
Key features: paste JSON, formatted tree view, collapsible nodes, syntax highlighting, search.
6. Markdown Editor with Preview
Build a markdown editor with live preview.
Key features: textarea, real-time HTML preview, basic markdown parsing (headings, bold, lists, code).
7. Kanban Board
Build a Trello-like kanban board with drag and drop.
Key features: columns (To Do, In Progress, Done), cards, drag between columns, add/edit/delete cards.
8. Data Table with Sort and Filter
Build a data table with sortable columns and filtering.
Key features: column headers (click to sort), filter input per column, pagination, row selection.
9. Color Picker
Build a color picker with hex, RGB, and HSL inputs.
Key features: color preview, hex input, RGB sliders, HSL conversion, copy to clipboard.
10. Star Rating with Reviews
Build a product review system with star rating and review list.
Key features: star rating input, review text, submit, review list with average rating, sort by rating.
How to Use These
- Practice after mastering common and intermediate questions.
- These are rare but may appear in senior-level interviews.
- They test complex state management, algorithms, and drag-and-drop.
The Takeaway
Bonus advanced questions: chess board, maze solver, LRU cache visualizer, form builder, JSON formatter, markdown editor, kanban board, data table, color picker, and star rating with reviews. Practice these for senior-level interviews. They test complex state, algorithms, and interactions.
Chess board with move validation, maze solver visualizer, LRU cache visualizer, form builder (drag and drop), JSON tree viewer, markdown editor with live preview, and kanban board with drag and drop. These test complex state, algorithms, and interactions.
Create columns (To Do, In Progress, Done) with cards. Use the Drag and Drop API to move cards between columns. Track card state (which column, order). Add/edit/delete cards. Re-render on changes. This tests drag-and-drop and multi-list state management.
Create a grid with walls. Implement BFS or DFS. Animate the search (setInterval or requestAnimationFrame) to show visited cells. Highlight the shortest path when found. This tests algorithms and animation.
Parse the JSON with JSON.parse. Recursively render objects and arrays as collapsible tree nodes. Use a toggle for expand/collapse. Add syntax highlighting (keys, strings, numbers, booleans). Handle invalid JSON with an error message.
Less common than standard questions (OTP, autocomplete, pagination). They appear in senior-level interviews or at companies that test algorithms and complex UI. Practice them after mastering the common and intermediate questions.
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