{"adoption": {"forks": 57, "observed_at": "2026-08-28T04:05:46.364619+00:00", "stars": 1867}, "canonical_url": "https://ross.abutalabs.com/products/emergencejs", "card": {"archived": true, "artifact_type": "plugin", "description": "Detect element visibility in the browser", "domain": ["frontend", "web-development"], "enriched": true, "function": ["animation", "ui-components"], "health_score": 10, "homepage": "https://xtianmiller.github.io/emergence.js/", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["xtianmiller/emergence.js"], "name": "xtianmiller/emergence.js", "platform": ["browser"], "pushed_at": "2025-09-14T12:08:28+00:00", "repo": "xtianmiller/emergence.js", "stars": 1867, "tags": ["scroll-visibility", "scroll-reveal", "viewport-detection", "dependency-free", "data-attributes", "javascript"], "topics": ["viewport", "visibility", "reveal", "animation", "javascript", "scroll", "element"], "urls": [], "use_cases": ["reveal elements with animations as they scroll into view", "detect when an element enters the browser viewport", "trigger CSS state changes on scroll visibility", "lazy reveal content on scroll without jQuery", "add scroll-based visibility callbacks to elements"], "what_it_is": "Emergence.js is a lightweight, dependency-free JavaScript plugin that detects when elements become visible in the browser viewport. It toggles a data-emergence attribute on watched elements so developers can trigger CSS or JS animations and state changes on scroll.", "when_to_avoid": ["you need advanced scroll animation features like parallax or staggered timelines", "your framework already provides intersection-observer-based utilities", "you need lazy-loading of images rather than visibility state toggling"], "when_to_choose": ["you need a tiny (~1KB) dependency-free scroll visibility plugin", "you want to control reveal effects with your own CSS via data attributes", "you need broad legacy browser support including IE8+"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/emergencejs", "repo": "xtianmiller/emergence.js", "role": "main", "score": 10}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:46.364619+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:15:31.655281+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ff4f6c580e80dd2b067d604b7858ddc19887fe16768fd406bf5d50d104f2fb4c", "fetched_at": "2026-08-28T04:05:46.364619+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtianmiller/emergence.js"}, {"content_hash": "ae087464a3e4ed6ade162e4e0613b128c7cbcc10654d70589ab785192c6f88bc", "fetched_at": "2026-08-29T10:54:32.751759+00:00", "kind": "homepage", "missing": false, "url": "https://xtianmiller.github.io/emergence.js/"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 42, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["no_releases", "archived"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3849, "days_push": 353, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 10, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}