googlearchive/observe-js

Health v2 · maintenance only

Flags: archived no_license

Adoption not part of the score

1342 stars · 113 forks observed · 2026-08-28

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

observe-js is a JavaScript library for observing changes to Arrays, Objects, and PathValues, exposing observers like PathObserver, ArrayObserver, ObjectObserver, and CompoundObserver. It uses the native Object.observe API when available and falls back to dirty-checking otherwise.

Use cases

• watch for changes to javascript object properties
• observe array mutations and get minimal splices
• react to changes at a nested object path
• build data binding for a web framework
• detect changes in javascript data structures

When to choose

• maintaining legacy Polymer-era code that already depends on it
• targeting very old environments where you need Object.observe-style observation with a dirty-checking fallback

When to avoid

• starting any new project - it is archived and Object.observe was removed from browsers
• modern reactive UIs - use Proxies, RxJS, or framework reactivity instead

Facets

library · maturity abandoned

state-management developer-tools web-development frontend browser data-binding object-observe dirty-checking polymer archived javascript nodejs

Member repositories

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