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Practice Zone • ReactJS
5 Topics 160 Questions All Difficulty
Topics
All Questions Full list for ReactJS 160 Component Design Practice Component Design with real questions. 32 Forms & Validation Practice Forms & Validation with real questions. 32 Hooks & Effects Practice Hooks & Effects with real questions. 32 Performance & Patterns Practice Performance & Patterns with real questions. 32 State Management Practice State Management with real questions. 32
Questions
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Controlled Input Component
Easy
Jan 25, 2026
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Layout Component With Props
Medium
Jan 25, 2026
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Style Props Merging
Medium
Jan 25, 2026
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Disable Button During Work
Medium
Jan 25, 2026
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Reusable Alert Component
Easy
Jan 25, 2026
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Keyed Fragment List
Hard
Jan 25, 2026
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Simple Portal Toast
Hard
Jan 25, 2026
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Compound Input With Label
Medium
Jan 25, 2026
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Small Router Without Library
Hard
Jan 25, 2026
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Prop Drilling Cleanup
Hard
Jan 25, 2026
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Conditional ClassName
Medium
Jan 25, 2026
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Render Only When Needed
Easy
Jan 25, 2026
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Small Component API Design
Medium
Jan 25, 2026
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Keyboard Friendly Menu Button
Medium
Jan 25, 2026
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Reusable Spacer Component
Easy
Jan 25, 2026
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Split Layout Using Props
Hard
Jan 25, 2026
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Safe HTML Rendering
Hard
Jan 25, 2026
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Component With Optional Footer
Medium
Jan 25, 2026
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Prevent Unnecessary Re-render
Hard
Jan 25, 2026
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Tooltip On Hover And Focus
Medium
Jan 25, 2026
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Stepper Progress Indicator
Medium
Jan 25, 2026
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Counter With Step Buttons
Easy
Jan 25, 2026
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Toggle Multiple Filters
Medium
Jan 25, 2026
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Basic Shopping Cart State
Medium
Jan 25, 2026
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Effect Cleanup With Timer
Medium
Jan 25, 2026
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Fetch Data With Loading And Error
Hard
Jan 25, 2026
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Click Outside To Close
Hard
Jan 25, 2026
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Email Form With Simple Validation
Medium
Jan 25, 2026
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Password Strength Hint
Medium
Jan 25, 2026
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Todo List Add And Remove
Medium
Jan 25, 2026
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useReducer Counter With History
Hard
Jan 25, 2026
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Theme Toggle With Context
Hard
Jan 25, 2026
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Debounced Search Input
Hard
Jan 25, 2026
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usePrevious Value Hook
Medium
Jan 25, 2026
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useLocalStorage State
Hard
Jan 25, 2026
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Abort Fetch On Unmount
Hard
Jan 25, 2026
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Dynamic Input Fields
Hard
Jan 25, 2026
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Checkbox Group With Summary
Medium
Jan 25, 2026
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File Input Preview
Hard
Jan 25, 2026
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Inline Style Objects Move Outside
Medium
Jan 25, 2026
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useMemo For Filtered List
Hard
Jan 25, 2026
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useCallback Stable Handler
Hard
Jan 25, 2026
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Optimistic Like Button
Hard
Jan 25, 2026
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Cart Item Quantity Controls
Medium
Jan 25, 2026
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Language Switcher With Context
Hard
Jan 25, 2026
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Pagination With useReducer
Hard
Jan 25, 2026
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Document Title From Select
Medium
Jan 25, 2026
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Window Width Listener
Medium
Jan 25, 2026
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Custom useInterval Hook
Hard
Jan 25, 2026
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Enter Key Shortcut
Hard
Jan 25, 2026
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Confirm Password Basic
Hard
Jan 25, 2026
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Radio Plan Selector
Medium
Jan 25, 2026
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Validate On Blur
Medium
Jan 25, 2026
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Reset Form Button
Easy
Jan 25, 2026
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Memoized Row Component
Hard
Jan 25, 2026
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Lazy Loaded Section
Hard
Jan 25, 2026
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Stable Keys Not Index
Easy
Jan 25, 2026
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Star Rating State
Medium
Jan 25, 2026
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Multi Step Wizard State
Medium
Jan 25, 2026
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Undo Last Added Item
Hard
Jan 25, 2026
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Persist Toggle Setting
Hard
Jan 25, 2026
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useMediaQuery Hook
Hard
Jan 25, 2026
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Scroll Position Tracker
Medium
Jan 25, 2026
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Custom useFetch Hook
Hard
Jan 25, 2026
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Effect Dependency Fix
Hard
Jan 25, 2026
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Dependent Select Inputs
Hard
Jan 25, 2026
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Number Input With Limits
Medium
Jan 25, 2026
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Textarea Character Limit
Easy
Jan 25, 2026
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Error Summary On Submit
Hard
Jan 25, 2026
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Split State By Concern
Medium
Jan 25, 2026
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Keep Mutable Value In Ref
Hard
Jan 25, 2026
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Memoize Derived Stats
Hard
Jan 25, 2026
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Toast Queue Reducer
Hard
Jan 25, 2026
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Cart Quantities Reducer
Hard
Jan 25, 2026
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Select All Checkbox
Medium
Jan 25, 2026
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Accordion Open Set
Medium
Jan 25, 2026
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Optimistic Like Toggle
Hard
Jan 25, 2026
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Request Status State
Hard
Jan 25, 2026
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Theme Context Toggle
Hard
Jan 25, 2026
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Modal Stack Manager
Hard
Jan 25, 2026
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Inline Edit List Item
Hard
Jan 25, 2026
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Move Item Up And Down
Medium
Jan 25, 2026
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Sync Page With URL
Hard
Jan 25, 2026
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Session Draft Saver
Hard
Jan 25, 2026
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Tag Input With Remove
Medium
Jan 25, 2026
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useDebouncedValue Hook
Hard
Jan 25, 2026
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useInterval Hook
Hard
Jan 25, 2026
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usePrevious Hook
Medium
Jan 25, 2026
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useOnClickOutside Hook
Hard
Jan 25, 2026
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useDocumentTitle With Cleanup
Medium
Jan 25, 2026
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useEventListener Hook
Hard
Jan 25, 2026
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Abortable Fetch Effect
Hard
Jan 25, 2026
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useLocalStorage Hook
Hard
Jan 25, 2026
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useCopyToClipboard Hook
Hard
Jan 25, 2026
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Measure Width With LayoutEffect
Hard
Jan 25, 2026
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useOnlineStatus Hook
Medium
Jan 25, 2026
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Hash Route Listener
Hard
Jan 25, 2026
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Focus Input On Mount
Medium
Jan 25, 2026
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Close On Escape
Hard
Jan 25, 2026
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Auto Save With Cleanup
Hard
Jan 25, 2026
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