# extendr

> Utilities for cloning, extending, and de-referencing objects in shallow, deep, and safe ways

Latest version **7.10.0** (published 2024-01-02) · Artistic-2.0 license · 0 weekly downloads

## Install

```sh
npm install extendr
pnpm add extendr
yarn add extendr
bun add extendr
```

## Health

**Score 30/100 (F)** — status: abandoned.

Positive: no vulnerabilities; high maintenance score.

Warnings: low downloads; no types; no esm support.

Negative: abandoned.

## Facts

| | |
|---|---|
| Version | 7.10.0 |
| Published | 2024-01-02 |
| First published | 2013-03-28 |
| Weekly downloads | 0 |
| License | Artistic-2.0 |
| TypeScript types | none |
| Module format | CommonJS |
| Node | >=4 |
| Dependencies | 2 |
| Unpacked size | 53.2 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 5 |
| Author | Benjamin Lupton |
| Maintainers | bevryme |
| Keywords | browser, clone, deepClone, deepExtend, dereference, es5, esnext, extend, node, safeExtend, shallowExtend, typed, types |

## Links

- npm: https://www.npmjs.com/package/extendr
- Repository: https://github.com/bevry/extendr
- Issues: https://github.com/bevry/extendr/issues
- Funding: https://bevry.me/fund
- npm.io page: https://npm.io/package/extendr

## Dependencies (2)

- [editions](https://npm.io/package/editions.md) ^6.21.0
- [typechecker](https://npm.io/package/typechecker.md) ^9.3.0

## Alternatives

- [@opentelemetry/exporter-zipkin](https://npm.io/package/@opentelemetry/exporter-zipkin.md) — 14.8M weekly downloads
- [pusher-js](https://npm.io/package/pusher-js.md) — 2.0M weekly downloads
- [browserify](https://npm.io/package/browserify.md) — 1.7M weekly downloads
- [sqs-consumer](https://npm.io/package/sqs-consumer.md) — 1.7M weekly downloads
- [@sanity/eventsource](https://npm.io/package/@sanity/eventsource.md) — 930.8K weekly downloads

## Recent versions

- 7.10.0 (latest) — 2024-01-02
- 7.10.0-next.1704167110.f26c7b79047e23c7e00ac9580a984022941ce04c (next) — 2024-01-02
- 7.9.0-next.1703779730.62d375a738f589ec2161020cc2b4435ea832a954 — 2023-12-28
- 7.9.0 — 2023-12-28
- 7.8.0-next.1703663908.a4578d4b6cb68d4ca3d2b4669a53abdbea8621cc — 2023-12-27
- 7.8.0 — 2023-12-27
- 7.7.0 — 2023-12-05
- 7.7.0-next.1701793044.c5ea784a3ab9d932adbc875ce56a3380ac9cc0e2 — 2023-12-05
- 7.6.0 — 2023-12-05
- 7.6.0-next.1701785519.0c4b6339853d3f68cedee5cbd70d34083b81d5ef — 2023-12-05
- 7.5.1 — 2023-12-05
- 7.5.1-next.1701784958.b1b98c7da56d2a76b08aaf2095dd7b6fc8cb2e14 — 2023-12-05
- 7.5.0 — 2023-12-05
- 7.5.0-next.1701779779.d171f9fa617f9cdd8e2ceb7bf077fabbfda2fed7 — 2023-12-05
- 7.4.0-next.1700839538.ffb63e31109c872ede708f60718da12baea10484 — 2023-11-24
- … 94 more at https://npm.io/package/extendr/versions

## README

<!-- TITLE/ -->

# extendr

<!-- /TITLE -->

<!-- BADGES/ -->

<span class="badge-githubworkflow"><a href="https://github.com/bevry/extendr/actions?query=workflow%3Abevry" title="View the status of this project's GitHub Workflow: bevry"><img src="https://github.com/bevry/extendr/workflows/bevry/badge.svg" alt="Status of the GitHub Workflow: bevry" /></a></span>
<span class="badge-npmversion"><a href="https://npmjs.org/package/extendr" title="View this project on NPM"><img src="https://img.shields.io/npm/v/extendr.svg" alt="NPM version" /></a></span>
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<!-- /BADGES -->

<!-- DESCRIPTION/ -->

Utilities for cloning, extending, and de-referencing objects in shallow, deep, and safe ways

<!-- /DESCRIPTION -->


## Usage

[Complete API Documentation.](http://master.extendr.bevry.surge.sh/docs/)

<!-- INSTALL/ -->

## Install

### [npm](https://npmjs.com "npm is a package manager for javascript")

-   Install: `npm install --save extendr`
-   Import: `import * as pkg from ('extendr')`
-   Require: `const pkg = require('extendr')`

### [jspm](https://jspm.io "Native ES Modules CDN")

``` html
<script type="module">
    import * as pkg from '//dev.jspm.io/extendr@7.10.0'
</script>
```
### [Editions](https://editions.bevry.me "Editions are the best way to produce and consume packages you care about.")

This package is published with the following editions:
-   `extendr` aliases `extendr/index.cjs` which uses the [Editions Autoloader](https://github.com/bevry/editions "You can use the Editions Autoloader to autoload the appropriate edition for your consumers environment") to automatically select the correct edition for the consumer's environment
-   `extendr/source/index.js` is [ESNext](https://en.wikipedia.org/wiki/ECMAScript#ES.Next "ECMAScript Next") source code for [Node.js](https://nodejs.org "Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine") 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with [Require](https://nodejs.org/dist/latest-v5.x/docs/api/modules.html "Node/CJS Modules") for modules
-   `extendr/edition-browsers/index.js` is [ESNext](https://en.wikipedia.org/wiki/ECMAScript#ES.Next "ECMAScript Next") compiled for web browsers with [Require](https://nodejs.org/dist/latest-v5.x/docs/api/modules.html "Node/CJS Modules") for modules
-   `extendr/edition-node-4/index.js` is [ESNext](https://en.wikipedia.org/wiki/ECMAScript#ES.Next "ECMAScript Next") compiled for [Node.js](https://nodejs.org "Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine") 4 || 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with [Require](https://nodejs.org/dist/latest-v5.x/docs/api/modules.html "Node/CJS Modules") for modules

### [TypeScript](https://www.typescriptlang.org/ "TypeScript is a typed superset of JavaScript that compiles to plain JavaScript.")

This project provides its type information via inline [JSDoc Comments](http://usejsdoc.org "JSDoc is an API documentation generator for JavaScript, similar to Javadoc or phpDocumentor"). To make use of this in [TypeScript](https://www.typescriptlang.org/ "TypeScript is a typed superset of JavaScript that compiles to plain JavaScript."), set your <code>maxNodeModuleJsDepth</code> compiler option to `5` or thereabouts. You can accomplish this via your `tsconfig.json` file like so:
``` json
{
  "compilerOptions": {
    "maxNodeModuleJsDepth": 5
  }
}
```

<!-- /INSTALL -->

<!-- HISTORY/ -->

## History

[Discover the release history by heading on over to the `HISTORY.md` file.](https://github.com/bevry/extendr/blob/HEAD/HISTORY.md#files)

<!-- /HISTORY -->

<!-- BACKERS/ -->

## Backers

### Code

[Discover how to contribute via the `CONTRIBUTING.md` file.](https://github.com/bevry/extendr/blob/HEAD/CONTRIBUTING.md#files)

#### Authors

-   [Benjamin Lupton](https://balupton.com) — Accelerating collaborative wisdom.

#### Maintainers

-   [Benjamin Lupton](https://balupton.com) — Accelerating collaborative wisdom.

#### Contributors

-   [Benjamin Lupton](https://github.com/balupton) — [view contributions](https://github.com/bevry/extendr/commits?author=balupton "View the GitHub contributions of Benjamin Lupton on repository bevry/extendr")
-   [Sean Fridman](https://github.com/sfrdmn) — [view contributions](https://github.com/bevry/extendr/commits?author=sfrdmn "View the GitHub contributions of Sean Fridman on repository bevry/extendr")

### Finances

<span class="badge-githubsponsors"><a href="https://github.com/sponsors/balupton" title="Donate to this project using GitHub Sponsors"><img src="https://img.shields.io/badge/github-donate-yellow.svg" alt="GitHub Sponsors donate button" /></a></span>
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#### Sponsors

-   [Andrew Nesbitt](https://nesbitt.io) — Software engineer and researcher
-   [Balsa](https://balsa.com) — We're Balsa, and we're building tools for builders.
-   [Codecov](https://codecov.io) — Empower developers with tools to improve code quality and testing.
-   [Poonacha Medappa](https://poonachamedappa.com)
-   [Rob Morris](https://github.com/Rob-Morris)
-   [Sentry](https://sentry.io) — Real-time crash reporting for your web apps, mobile apps, and games.
-   [Syntax](https://syntax.fm) — Syntax Podcast

#### Donors

-   [Andrew Nesbitt](https://nesbitt.io)
-   [Armen Mkrtchian](https://mogoni.dev)
-   [Balsa](https://balsa.com)
-   [Chad](https://opencollective.com/chad8)
-   [Codecov](https://codecov.io)
-   [dr.dimitru](https://veliovgroup.com)
-   [Elliott Ditman](https://elliottditman.com)
-   [entroniq](https://gitlab.com/entroniq)
-   [GitHub](https://github.com/about)
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-   [Mohammed Shah](https://github.com/smashah)
-   [Mr. Henry](https://mrhenry.be)
-   [Nermal](https://arjunaditya.vercel.app)
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-   [Poonacha Medappa](https://poonachamedappa.com)
-   [Rob Morris](https://github.com/Rob-Morris)
-   [Robert de Forest](https://github.com/rdeforest)
-   [Sentry](https://sentry.io)
-   [ServieJS](https://github.com/serviejs)
-   [Skunk Team](https://skunk.team)
-   [Syntax](https://syntax.fm)
-   [WriterJohnBuck](https://github.com/WriterJohnBuck)

<!-- /BACKERS -->

<!-- LICENSE/ -->

## License

Unless stated otherwise all works are:

-   Copyright &copy; [Benjamin Lupton](https://balupton.com)

and licensed under:

-   [Artistic License 2.0](http://spdx.org/licenses/Artistic-2.0.html)

<!-- /LICENSE -->

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