Bun Convert an ArrayBuffer to a Uint8Array

Convert an ArrayBuffer to a Uint8Array

A Uint8Array is a typed array, meaning it is a mechanism for viewing the data in an underlying ArrayBuffer.

```ts theme={"theme":{"light":"github-light","dark":"dracula"}} const buffer = new ArrayBuffer(64); const arr = new Uint8Array(buffer);

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Instances of other typed arrays can be created similarly.

```ts  theme={"theme":{"light":"github-light","dark":"dracula"}}
const buffer = new ArrayBuffer(64);

const arr1 = new Uint8Array(buffer);
const arr2 = new Uint16Array(buffer);
const arr3 = new Uint32Array(buffer);
const arr4 = new Float32Array(buffer);
const arr5 = new Float64Array(buffer);
const arr6 = new BigInt64Array(buffer);
const arr7 = new BigUint64Array(buffer);

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To create a typed array that only views a portion of the underlying buffer, pass the offset and length to the constructor.

```ts theme={"theme":{"light":"github-light","dark":"dracula"}} const buffer = new ArrayBuffer(64); const arr = new Uint8Array(buffer, 0, 16); // view first 16 bytes

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See [Docs > API > Utils](/runtime/utils) for more useful utilities.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [jarle](https://github.com/jarle)
- **Source:** [jarle/bun-skills](https://github.com/jarle/bun-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.