# randomBytes4

Description: randomBytes4 cheatcode documentation

Note: This document was authored using MDX

  Source: https://github.com/NomicFoundation/hardhat-website/tree/main/src/content/docs/docs/reference/cheatcodes/Utilities/random-bytes4.mdx

### Signature

```solidity
function randomBytes4() external view returns (bytes4);
```

### Description

Returns a random fixed-size byte array of length 4.