---
url: /reference/OutputOptions.postBanner.md
---
# postBanner

* **Type**: `string` | ((`chunk`) => `string` | `Promise`<`string`>)
* **Optional**

A string to prepend to the bundle after [`renderChunk`](Interface.Plugin.md#renderchunk) hook and minification.

See [`output.banner`](./OutputOptions.banner), [`output.intro`](./OutputOptions.intro) as well.

## Examples

### Adding build info

```js
import pkg from './package.json' with { type: 'json' };
import { execSync } from 'node:child_process';

const gitHash = execSync('git rev-parse --short HEAD').toString().trim();

export default {
  output: {
    minify: true,
    postBanner: `/* ${pkg.name}@${pkg.version} (${gitHash}) */`,
  },
};
```