[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Bytes](https://evolu.dev/docs/api-reference/common/Bytes) › createBuffer

```ts
function createBuffer(
  arrayLike?: Uint8Array<ArrayBufferLike> | ArrayLike<number>,
): Buffer;
```

Defined in: [packages/common/src/Bytes.ts:167](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Bytes.ts#L167)

Creates a [Buffer](https://evolu.dev/docs/api-reference/common/Bytes/interfaces/Buffer) for efficient byte operations.