# morr/jquery.appear

jQuery plugin for tracking element's appearance in browser viewport

Repository: https://github.com/morr/jquery.appear
Canonical: https://ross.abutalabs.com/products/jqueryappear
Language: JavaScript
License: NOASSERTION
License Family: other
Archived: true
Last push: 2019-06-18T23:50:15+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5358, "days_push": 2633, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1193, forks 277 (observed 2026-08-28T04:03:56.462755+00:00)

## What it is
A jQuery plugin that adds custom 'appear' and 'disappear' events fired when elements enter or leave the browser viewport. It helps avoid unnecessary processing for hidden or off-screen content.

## Use cases
- trigger animations when elements scroll into view
- lazy-load images or content as it enters the viewport
- avoid processing content hidden outside the viewport
- detect when an element becomes visible or invisible on scroll or resize
- implement infinite scroll or deferred content loading

## When to choose
- you already use jQuery and need viewport visibility events
- you want a lightweight, battle-tested plugin for appear/disappear detection
- you need offset-based early triggering before elements enter the viewport

## When to avoid
- you use a modern framework like React or Vue with native IntersectionObserver
- you are starting a new project without jQuery
- you need advanced scroll-based animation features beyond simple visibility events

## Facets
- artifact type: plugin
- maturity: maintenance
- function: ui-components, animation
- domain: web-development, frontend
- platform: browser
- tags: jquery, viewport-detection, scroll-events, lazy-loading, nodejs

## Member repositories
- morr/jquery.appear (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:56.462755+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:22:14.525796+00:00, confidence not recorded.
  - readme: https://github.com/morr/jquery.appear (fetched 2026-08-28T04:03:56.462755+00:00, sha 4fe8a0747ba8)
- Data as of 2026-08-30T08:39:29.467469+00:00.