---
title: "performCommand(for:)"
framework: webkit
role: symbol
role_heading: Instance Method
path: "webkit/wkwebextensioncontext/performcommand(for:)-8btj0"
---

# performCommand(for:)

Performs the command associated with the given event.

## Declaration

```swift
func performCommand(for event: NSEvent) -> Bool
```

## Parameters

- `event`: The event representing the user input.

## Return Value

Return Value Returns YES if a command corresponding to the event was found and performed, NO otherwise.

## Discussion

Discussion This method checks for a command corresponding to the provided event and performs it, if available. The app should use this method to perform any extension commands at an appropriate time in the app’s event handling, like in sendEvent(_:) of  NSApplication or  sendEvent(_:) of  NSWindow subclasses.