# cards

#### cards

The cards involved in the action.

**Nullable:** true

{% hint style="info" %}
If no cards are involved in the action then the "cards" property can be omitted or set to null.
{% endhint %}

{% hint style="warning" %}
If less than the normal number of cards is known (for example if a player shows only one card when folding) then it is valid to list only the known card(s).
{% endhint %}

**Type:** array of [card\_string](https://hh-specs.handhistory.org/string-formats/card)

**Example:**

Eight of clubs and ten of clubs.

```javascript
"cards": [
    "8c",
    "Tc"
]
```

No cards.

```javascript
"cards": null
```