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# 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/ljharb/data-view-byte-length.svg
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[dev-deps-url]: https://david-dm.org/ljharb/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
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[downloads-url]: https://npm-stat.com/charts.html?package=data-view-byte-length
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