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Image Slider (Dots + Previous/Next)

By FrontendAtlas Team · Updated Jan 30, 2026

Build a simple React image slider with previous/next buttons and dot navigation. Show the current slide, its title, and the slide index (e.g. "Slide 1 of 3"). Disable navigation buttons when you reach the start or end. Framework focus: React hooks (useState/useEffect), JSX event handling,…

Render an component as the main UI.
Display the current slide image and its title.

What you’ll build / What this tests

This premium react coding focuses on Image Slider (Dots + Previous/Next). You’ll apply react and state thinking with easy level constraints. The prompt emphasizes Build a simple React image slider with previous/next buttons and dot navigation. Show the current slide,….

Learning goals

Translate the prompt into a clear react API signature and return shape.
Apply react, state, event-handlers techniques to implement image slider (dots + previous/next).
Handle easy edge cases without sacrificing readability.
Reason about time/space complexity and trade-offs in react.

Key decisions to discuss

Define the exact input/output contract before coding.
Prioritize predictable edge-case handling over micro-optimizations.

Evaluation rubric

Correctness: covers required behaviors and edge cases.
Clarity: readable structure and predictable control flow.
Complexity: avoids unnecessary work for large inputs.
API discipline: no mutation of inputs; returns expected shape.
Testability: solution is easy to unit test.

Constraints / Requirements

Render an component as the main UI.
Display the current slide image and its title.
Show text like "Slide X of N" under the image.
Provide "Previous" and "Next" buttons to move through slides.
Render dot buttons for each slide and allow jumping directly to a slide.
Disable "Previous" on the first slide and "Next" on the last slide.
Initial render shows the first slide (index 0).
Clicking "Next" moves forward by one slide until the last slide.
Clicking "Previous" moves backward by one slide until the first slide.
Dots update to reflect the current slide and clicking a dot jumps directly to that slide.

Mini snippet (usage only)

// Example usage
const input = /* image slider (dots + previous/next) input */;
const result = solve(input);
console.log(result);

// Edge case check
const empty = input ?? null;
const fallback = solve(input);
console.log(fallback);

// Expected: describe output shape, not the implementation
// (no solution code in preview)

Common pitfalls

Mutating inputs instead of returning a new value.
Skipping edge cases like empty input, duplicates, or nulls.
Overlooking time complexity for large inputs.