# data-view-byte-length

> Get the byteLength out of a DataView, robustly.

Latest version **1.0.2** (published 2024-12-20) · MIT license · 0 weekly downloads

> **Native alternative:** DataView.prototype.byteLength — Use native JavaScript (Node 0.10.0+) (https://developer.mozilla.orgGlobal_Objects/DataView/byteLength)

## Install

```sh
npm install data-view-byte-length
pnpm add data-view-byte-length
yarn add data-view-byte-length
bun add data-view-byte-length
```

## Health

**Score 50/100 (C)** — status: stable.

Positive: has types; esm support; no vulnerabilities; high quality score.

Warnings: low downloads.

Negative: stale.

## Facts

| | |
|---|---|
| Version | 1.0.2 |
| Published | 2024-12-20 |
| First published | 2024-03-04 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >= 0.4 |
| Dependencies | 3 |
| Unpacked size | 11.1 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 2 |
| Author | Jordan Harband |
| Maintainers | ljharb |
| Keywords | javascript, ecmascript, dataview, data, view, byte, length, byteLength, robust |

## Links

- npm: https://www.npmjs.com/package/data-view-byte-length
- Repository: https://github.com/inspect-js/data-view-byte-length
- Homepage: https://github.com/inspect-js/data-view-byte-length#readme
- Issues: https://github.com/inspect-js/data-view-byte-length/issues
- Funding: https://github.com/sponsors/inspect-js
- npm.io page: https://npm.io/package/data-view-byte-length

## Dependencies (3)

- [es-errors](https://npm.io/package/es-errors.md) ^1.3.0
- [call-bound](https://npm.io/package/call-bound.md) ^1.0.3
- [is-data-view](https://npm.io/package/is-data-view.md) ^1.0.2

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## Recent versions

- 1.0.2 (latest) — 2024-12-20
- 1.0.1 — 2024-03-09
- 1.0.0 — 2024-03-04

## README

# data-view-byte-length <sup>[![Version Badge][npm-version-svg]][package-url]</sup>

[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]

[![npm badge][npm-badge-png]][package-url]

Get the `byteLength` out of a DataView, robustly.

This will work in node <= 0.10 and < 0.11.4, where there's no prototype accessor, only a nonconfigurable own property.
It will also work in modern engines where `DataView.prototype.byteLength` has been deleted after this module has loaded.

## Example

```js
const dataViewByteLength = require('data-view-byte-length');
const assert = require('assert');

const ab = new ArrayBuffer(42);
const dv = new DataView(ab);
assert.equal(dataViewByteLength(dv), 42);
```

## Tests
Simply clone the repo, `npm install`, and run `npm test`

[package-url]: https://npmjs.org/package/data-view-byte-length
[npm-version-svg]: https://versionbadg.es/inspect-js/data-view-byte-length.svg
[deps-svg]: https://david-dm.org/inspect-js/data-view-byte-length.svg
[deps-url]: https://david-dm.org/inspect-js/data-view-byte-length
[dev-deps-svg]: https://david-dm.org/inspect-js/data-view-byte-length/dev-status.svg
[dev-deps-url]: https://david-dm.org/inspect-js/data-view-byte-length#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/data-view-byte-length.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/data-view-byte-length.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/data-view-byte-length.svg
[downloads-url]: https://npm-stat.com/charts.html?package=data-view-byte-length
[codecov-image]: https://codecov.io/gh/inspect-js/data-view-byte-length/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/inspect-js/data-view-byte-length/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/data-view-byte-length
[actions-url]: https://github.com/inspect-js/data-view-byte-length/actions

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