# @jupyterlab/observables

> Data structures which may be observed for changes.

Latest version **5.6.3** (published 2026-08-10) · BSD-3-Clause license · 0 weekly downloads

## Install

```sh
npm install @jupyterlab/observables
pnpm add @jupyterlab/observables
yarn add @jupyterlab/observables
bun add @jupyterlab/observables
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score; popular repo.

Warnings: low downloads; no esm support.

## Facts

| | |
|---|---|
| Version | 5.6.3 |
| Published | 2026-08-10 |
| First published | 2017-12-02 |
| Weekly downloads | 0 |
| License | BSD-3-Clause |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 5 |
| Unpacked size | 147.2 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 15289 |
| Author | Project Jupyter |
| Maintainers | darian, jasongrout, jtpio, krassowski, jupyterlab-release-bot |

## Links

- npm: https://www.npmjs.com/package/@jupyterlab/observables
- Repository: https://github.com/jupyterlab/jupyterlab
- Issues: https://github.com/jupyterlab/jupyterlab/issues
- npm.io page: https://npm.io/package/@jupyterlab/observables

## Dependencies (5)

- [@lumino/algorithm](https://npm.io/package/@lumino/algorithm.md) ^2.0.4
- [@lumino/coreutils](https://npm.io/package/@lumino/coreutils.md) ^2.2.2
- [@lumino/messaging](https://npm.io/package/@lumino/messaging.md) ^2.0.4
- [@lumino/signaling](https://npm.io/package/@lumino/signaling.md) ^2.1.5
- [@lumino/disposable](https://npm.io/package/@lumino/disposable.md) ^2.1.5

## Recent versions

- 5.6.3 (latest) — 2026-08-10
- 5.7.0-alpha.1 (next) — 2026-07-21
- 5.5.10 — 2026-07-21
- 5.6.2 — 2026-07-21
- 5.6.1 — 2026-06-29
- 5.7.0-alpha.0 — 2026-06-29
- 5.6.0 — 2026-06-18
- 5.5.9 — 2026-06-17
- 5.6.0-rc.1 — 2026-06-17
- 5.6.0-rc.0 — 2026-06-10
- 5.5.8 — 2026-06-04
- 5.6.0-beta.1 — 2026-05-28
- 5.6.0-beta.0 — 2026-05-20
- 5.5.7 — 2026-04-29
- 5.6.0-alpha.5 — 2026-04-29
- … 381 more at https://npm.io/package/@jupyterlab/observables/versions

## README

# @jupyterlab/observables

A JupyterLab package which provides data structures (such as strings, lists, and maps), which can be listened to for changes.

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_Source: https://npm.io/package/@jupyterlab/observables · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._