# wnr/element-resize-detector

Optimized cross-browser resize listener for elements.

Repository: https://github.com/wnr/element-resize-detector
Canonical: https://ross.abutalabs.com/products/element-resize-detector
Language: JavaScript
License: MIT
License Family: permissive
Topics: resize-events, resize, onresize, javascript, dom
Last push: 2024-05-24T08:02:29+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4236, "days_push": 831, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1312, forks 114 (observed 2026-08-28T04:04:20.180022+00:00)

## What it is
A JavaScript library that provides an optimized, cross-browser resize listener for DOM elements, using object-based or scroll-based detection strategies. It lets developers attach callbacks that fire whenever an element's size changes, including elements inside iframes.

## Use cases
- detect when a div is resized and update its contents
- listen for element size changes without window resize events
- make charts or components responsive to container size changes
- watch resize events on elements inside an iframe
- remove or clean up resize listeners when components unmount

## When to choose
- you need element-level resize detection in older or varied browsers
- you want a fast, dependency-free vanilla JS solution
- you need to support iframes or dynamically attached elements

## When to avoid
- you only need window-level resize events (use native events)
- your project uses ResizeObserver and only targets modern browsers
- you need a framework-specific reactive resize hook

## Facets
- artifact type: library
- maturity: maintenance
- function: developer-tools
- domain: web-development, frontend
- platform: browser
- tags: resize-events, dom, javascript, cross-browser, event-listener, nodejs

## Member repositories
- wnr/element-resize-detector (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:20.180022+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 2026-08-30T08:20:49.301088+00:00, confidence not recorded.
  - readme: https://github.com/wnr/element-resize-detector (fetched 2026-08-28T04:04:20.180022+00:00, sha 7c604b8fe65e)
  - registry_npm: https://registry.npmjs.org/element-resize-detector (fetched 2026-08-29T12:07:58.010309+00:00, sha 4369bf778b91)
- Data as of 2026-08-30T08:39:29.467469+00:00.