lafikl/steady.js

Health v2 · maintenance only

Adoption not part of the score

1348 stars · 35 forks observed · 2026-08-28

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

Steady.js is a small JavaScript module for running logic on the onscroll event without performance regressions, using media-query-like conditions and customizable trackers. It keeps the scroll handler tiny (collecting values only) and offloads condition evaluation to requestAnimationFrame, throttling work so scrolling stays jank-free.

Use cases

• run code when the user scrolls near the bottom of a page or element
• implement infinite scroll or lazy loading without jank
• write scroll-position conditions like media queries (e.g. when scrolled 500px down)
• optimize a heavy onscroll handler that causes dropped frames
• trigger UI changes based on scroll depth or viewport width
• build custom scroll trackers that collect values like top, bottom, width, or scrollLeft

When to choose

• you need scroll-triggered behavior (infinite scroll, lazy loading, sticky reveals) that stays smooth
• you want declarative, media-query-style conditions on scroll values instead of manual event math
• you're working on a vanilla JS or older-stack frontend where a tiny dependency-free scroll utility fits

When to avoid

• you're on a modern stack where native IntersectionObserver covers scroll-triggered behavior without a library
• you need a currently maintained library with recent updates and security support (last release was 2015)
• you need framework-specific scroll integrations (React/Vue components) rather than a vanilla DOM utility

Facets

library · maturity abandoned

animation state-management web-development frontend performance browser scroll-events onscroll requestanimationframe jank-free infinite-scroll lazy-loading media-queries scroll-position trackers vanilla-javascript dom tiny-library

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markdown · JSON · MCP: product_card(name="lafikl/steady.js")