# $taxRules->isOdd()

> Checks if the number of elements is odd

- Source: `src/Toolkit/Collection.php#L670` <https://github.com/getkirby/kirby/blob/6.0.0-beta.1/src/Toolkit/Collection.php#L670>
- Inherited from Kirby, not part of the Merx API. See <https://getkirby.com/docs/reference>.

```php
$taxRules->isOdd(): bool
```

## Return type

`bool`

## Parent class

`Wagnerwagner\Merx\TaxRules` inherited from `Kirby\Toolkit\Collection`