blob: 2458b21c0ddb60729af0bcaaa984d783752e805f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
---
name: Convert a Uint8Array to an ArrayBuffer
---
A [`Uint8Array`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array) is a _typed array_ class, meaning it is a mechanism for viewing data in an underlying `ArrayBuffer`. The underlying `ArrayBuffer` is accessible via the `buffer` property.
```ts
const arr = new Uint8Array(64);
arr.buffer; // => ArrayBuffer(64)
```
---
The `Uint8Array` may be a view over a _subset_ of the data in the underlying `ArrayBuffer`. In this case, the `buffer` property will return the entire buffer, and the `byteOffset` and `byteLength` properties will indicate the subset.
```ts
const arr = new Uint8Array(64, 16, 32);
arr.buffer; // => ArrayBuffer(64)
arr.byteOffset; // => 16
arr.byteLength; // => 32
```
---
See [Docs > API > Binary Data](/docs/api/binary-data#conversion) for complete documentation on manipulating binary data with Bun.
|
