> For the complete documentation index, see [llms.txt](https://docs.dedot.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dedot.dev/utilities/hex.md).

# HexString

### `hexToU8a`

Converts a hex string to a Uint8Array

```typescript
import { hexToU8a } from 'dedot/utils';

hexToU8a('0x1234') // new Uint8Array([0x12, 0x34])
```

### `hexToString`

Converts a hex to a string

```typescript
import { hexToString } from 'dedot/utils';

hexToString('0x616263') // 'abc'
```

### `isZeroHex`

Check if a hex is zero

```typescript
import { isZeroHex } from 'dedot/utils';

isZeroHex('0x00000000') // true
isZeroHex('0x00000001') // false
```

### `hexAddPrefix` & `hexStripPrefix`

Add/remove the '0x' prefix to/from a hex string

```typescript
import { hexAddPrefix, hexStripPrefix } from 'dedot/utils';

hexAddPrefix('00000000') // '0x00000000'
hexAddPrefix('0x00000001') // '0x00000001'

hexStripPrefix('00000000') // '00000000'
hexStripPrefix('0x00000001') // '00000001'
```

### `toHex`

Converts the input to a hex string, input can be in different types: `string | number | Uint8Array | HexString`

```typescript
import { toHex } from 'dedot/utils';

toHex(new Uint8Array([0x12, 0x34])) // '0x1234'
toHex(4660) // '0x1234'
toHex('0x1234') // '0x1234'
toHex('abc') // '0x1234'
```