The Gamepad API is a way for developers to access and respond to signals from gamepads and other game controllers in a simple, consistent way. It contains three interfaces, two events and one specialist function, to respond to gamepads being connected and disconnected, and to access other information about the gamepads themselves, and what buttons and other controls are currently being pressed.

Gamepad

Represents a gamepad/controller connected to the computer.

GamepadButton

Represents a button on one of the connected controllers.

GamepadEvent

The event object representing events fired that are related to gamepads.

GamepadHapticActuator

Represents hardware in the controller designed to provide haptic feedback to the user (if available), most commonly vibration hardware.

GamepadPose

Represents the pose of a controller (e.g. position and orientation in 3D space) in the case of a WebVR controller. This is not used by the newer WebXR standard.

See also the extensions to the Gamepad interface, for features that allow you to access the above information.

Navigator

Navigator.getGamepads()

An extension to the Navigator object that returns an array of Gamepad objects, one for each connected gamepad.

Window events

gamepadconnected

An event that will fire when a gamepad is connected.

gamepaddisconnected

An event that will fire when a gamepad is disconnected.

• Using the Gamepad API
• Implementing controls using the Gamepad API

• The Gamepad API by Ted Mielczarek and Robert Nyman
• Simple API demo page (source)