Premium

Vue Star Rating Widget

By FrontendAtlas Team · Updated Jan 30, 2026

Create a reusable star rating widget in Vue 3 with a controlled rating value. Render stars from 1..max, update on click, and reflect the current rating visually. Keep the parent as the source of truth. Concepts: vue, components, reactivity. Vue focus: use props/emits for a…

Render the star rating UI as the main component.
Display a row of stars (e.g. 5 by default).

What you’ll build / What this tests

This premium vue coding focuses on Vue Star Rating Widget. You’ll apply vue and components thinking with easy level constraints. The prompt emphasizes Create a reusable star rating widget in Vue 3 with a controlled rating value. Render stars….

Learning goals

Translate the prompt into a clear vue API signature and return shape.
Apply vue, components, reactivity techniques to implement vue star rating widget.
Handle easy edge cases without sacrificing readability.
Reason about time/space complexity and trade-offs in vue.

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 the star rating UI as the main component.
Display a row of stars (e.g. 5 by default).
Allow the user to select a rating by clicking a star.
Visually fill all stars up to the selected rating.
Display the current rating value below the stars (e.g. "Current rating: 3 / 5").
Stars render from 1 up to the configured max (default 5).
Clicking the 3rd star sets the rating to 3 and fills 3 stars.
Clicking the 5th star sets the rating to 5 and fills 5 stars.
Initial rating starts at 0 (no filled stars).
Use Vue 3's syntax in App.vue.

Mini snippet (usage only)

// Example usage
const input = /* vue star rating widget 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.