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Image Slider (Standalone Component)

By FrontendAtlas Team · Updated Jan 30, 2026

Build an image slider with next/prev controls, a current index, and disabled states at bounds. Keep the template state-driven and update the active slide label as the index changes. Concepts: components, event-binding, ng-for.

Use a standalone Angular component as the root component.
Keep an in-memory list of slides (each with at least a title…

What you’ll build / What this tests

This premium angular coding focuses on Image Slider (Standalone Component). You’ll apply components and event-binding thinking with intermediate level constraints. The prompt emphasizes Build an image slider with next/prev controls, a current index, and disabled states at bounds. Keep….

Learning goals

Translate the prompt into a clear angular API signature and return shape.
Apply components, event-binding, ng-for techniques to implement image slider (standalone component).
Handle intermediate edge cases without sacrificing readability.
Reason about time/space complexity and trade-offs in angular.

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

Use a standalone Angular component as the root component.
Keep an in-memory list of slides (each with at least a title and image URL).
Display the currently active slide (image and title).
Provide "Previous" and "Next" buttons to move between slides.
Disable the "Previous" button on the first slide and the "Next" button on the last slide.
Render dot indicators for each slide; clicking a dot should jump to that slide.
Display a small "Slide X of N" helper text.
Initial view shows the first slide.
Clicking "Next" advances to the next slide until the last one; afterwards it stays on the last slide…
Clicking "Previous" moves backwards until the first slide; on the first slide it stays there and "Previous" is…

Mini snippet (usage only)

// Example usage
const input = /* image slider (standalone component) 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.