# mobxjs/mobx-utils

Utility functions and common patterns for MobX

Repository: https://github.com/mobxjs/mobx-utils
Canonical: https://ross.abutalabs.com/products/mobx-utils
Language: TypeScript
License: MIT
License Family: permissive
Last push: 2025-06-25T08:58:44+00:00

## Health v2 (maintenance only)
Score: 45/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 28, release rhythm 35, longevity 100
- inputs: {"age_days": 3678, "days_push": 434, "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 1219, forks 128 (observed 2026-08-28T04:04:01.711522+00:00)

## What it is
A TypeScript utility library providing helper functions and common patterns built on top of MobX, such as promise-to-observable conversion, lazy observables, view models, and queue processors. It is published as the npm package mobx-utils and maintained under the MobX organization.

## Use cases
- convert promises into MobX observable values
- create lazy observables that fetch data on demand
- build editable view models with createViewModel
- process queues or chunks of items reactively
- observe deep changes in MobX trees with deepObserve
- keep computed values alive with keepAlive
- track reactive time with the now() utility

## When to choose
- you already use MobX for state management and need common reactive patterns
- you want promise, stream, or queue helpers that integrate with observables
- you need utilities like createViewModel or deepObserve in a MobX app

## When to avoid
- you don't use MobX in your project
- you need a full state management solution rather than utilities
- you use a different reactive library like RxJS exclusively

## Facets
- artifact type: library
- maturity: stable
- function: state-management, developer-tools
- domain: frontend, web-development, developer-tools
- platform: browser, cross-platform
- tags: mobx, reactive-programming, observables, typescript, state-management, nodejs

## Member repositories
- mobxjs/mobx-utils (main) score 45

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:01.711522+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 2026-08-30T06:16:14.181465+00:00, confidence not recorded.
  - readme: https://github.com/mobxjs/mobx-utils (fetched 2026-08-28T04:04:01.711522+00:00, sha f458f9535fee)
  - registry_npm: https://registry.npmjs.org/mobx-utils (fetched 2026-08-29T12:24:29.126598+00:00, sha 539ae02fb409)
- Data as of 2026-08-30T08:39:29.467469+00:00.