williamngan/roll

Health v2 · maintenance only

Adoption not part of the score

1004 stars · 62 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A tiny (~8kb) dependency-free JavaScript library for tracking scroll position, pagination, and step-based progress in DOM or canvas contexts. It emits 'roll' and 'step' events that you can hook into for scroll-driven slideshows, animations, and pagination logic.

Use cases

• track scroll position in a DOM element
• build a scrolling slideshow with step events
• implement scroll-based pagination
• trigger animations based on scroll progress
• track position and steps in a canvas-based interface
• add css classes to steps as they come into view

When to choose

• you need a lightweight, dependency-free scroll tracking utility
• you want event-driven pagination or step-based scroll logic
• you're building a scrolling slideshow and want simple css class toggling
• you need scroll tracking for both DOM and canvas contexts

When to avoid

• you need a full-featured scroll animation library like GSAP ScrollTrigger
• you want scroll-linked parallax or complex timeline effects out of the box
• you need a framework-integrated scroll solution with React/Vue bindings
• you require active maintenance and recent updates

Facets

library · maturity maintenance

state-management animation web-development frontend browser scroll-tracking pagination event-emitter tiny-library no-dependencies javascript

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markdown · JSON · MCP: product_card(name="williamngan/roll")