# Standard Error Appender

This appender writes all log events to the standard error stream.

# Configuration

- `type` - `stderr`
- `layout` - `object` (optional, defaults to colouredLayout) - see [layouts](layouts.md)

# Example

```javascript
log4js.configure({
  appenders: { err: { type: "stderr" } },
  categories: { default: { appenders: ["err"], level: "ERROR" } },
});
```