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# action(for:)

Retrieves the extension action for a given tab, or the default action if `nil` is passed.

```
func action(for tab: (any WKWebExtensionTab)?) -> WKWebExtension.Action?
```

## Parameters

`tab`

The tab for which to retrieve the extension action, or `nil` to get the default action.

## Discussion

The returned object represents the action specific to the tab when provided; otherwise, it returns the default action. The default action is useful when the context is unrelated to a specific tab. When possible, specify the tab to get the most context-relevant action.

## See Also

[`performAction(for:)`](/documentation/WebKit/WKWebExtensionContext/performAction(for:))

Performs the extension action associated with the specified tab or performs the default action if `nil` is passed.


---

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