The Gamepad.id
property of the Gamepad
interface returns a string containing some information about the controller.
The exact syntax is not strictly specified, but in Firefox it will contain three pieces of information separated by dashes (-
):
- Two 4-digit hexadecimal strings containing the USB vendor and product id of the controller
- The name of the controller as provided by the driver.
For example, a PS2 controller returned 810-3-USB Gamepad.
This information is intended to allow you to find a mapping for the controls on the device as well as display useful feedback to the user.