Window.ongamepaddisconnected - Web APIs
the ongamepaddisconnected property of the window interface represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).
... syntax window.ongamepaddisconnected = function() { ...
... }; examples window.ongamepaddisconnected = function() { // a gamepad has been disconnected }; specifications specification status comment gamepadthe definition of 'gamepaddisconnected event' in that specification.

Window: gamepaddisconnected event - Web APIs
the gamepaddisconnected event is fired when the browser detects that a gamepad has been disconnected.
... bubbles no cancelable no interface gamepadevent event handler property ongamepaddisconnected examples window.addeventlistener('gamepaddisconnected', event => { console.log('lost connection with the gamepad.'); }); specifications specification status gamepad working draft ...

Using the Gamepad API - Web APIs
gamepadconnected), a second event is dispatched to the focused window, gamepaddisconnected: window.addeventlistener("gamepaddisconnected", function(e) { console.log("gamepad disconnected from index %d: %s", e.gamepad.index, e.gamepad.id); }); the gamepad's index property will be unique per-device connected to the system, even if multiple controllers of the same type are used.
... var gamepads = {}; function gamepadhandler(event, connecting) { var gamepad = event.gamepad; // note: // gamepad === navigator.getgamepads()[gamepad.index] if (connecting) { gamepads[gamepad.index] = gamepad; } else { delete gamepads[gamepad.index]; } } window.addeventlistener("gamepadconnected", function(e) { gamepadhandler(e, true); }, false); window.addeventlistener("gamepaddisconnected", function(e) { gamepadhandler(e, false); }, false); this previous example also demonstrates how the gamepad property can be held after the event has completed — a technique we will use for device state querying later.
...it has " + gp.buttons.length + " buttons and " + gp.axes.length + " axes."; gameloop(); }); now we use the gamepaddisconnected event to check if the gamepad is disconnected again.
...And 3 more matches

Index - Web APIs
1453 gamepadevent api, gamepad api, games, interface, reference the gamepadevent interface of the gamepad api contains references to gamepads connected to the system, which is what the gamepad events window.gamepadconnected and window.gamepaddisconnected are fired in response to.
... 1455 gamepadevent.gamepad api, gamepad api, property, reference, référence(2) the gamepadevent.gamepad property of the gamepadevent interface returns a gamepad object, providing access to the associated gamepad data for fired gamepadconnected and gamepaddisconnected events.
... 4956 window.ongamepaddisconnected api, event handler, experimental, gamepad api, property, reference, window, ongamepaddisconnected the ongamepaddisconnected property of the window interface represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).
... 5041 window: gamepaddisconnected event the gamepaddisconnected event is fired when the browser detects that a gamepad has been disconnected.

Implementing controls using the Gamepad API - Game development
implementation there are two important events to use along with the gamepad api — gamepadconnected and gamepaddisconnected.
...next, we set up two event listeners to get the data: window.addeventlistener("gamepadconnected", gamepadapi.connect); window.addeventlistener("gamepaddisconnected", gamepadapi.disconnect); due to security policy, you have to interact with the controller first while the page is visible for the event to fire.
... events there were more events available in the spec than just gamepadconnected and gamepaddisconnected available, but they were removed from the specification as they were thought to not be very useful.

GamepadEvent - Web APIs
the gamepadevent interface of the gamepad api contains references to gamepads connected to the system, which is what the gamepad events window.gamepadconnected and window.gamepaddisconnected are fired in response to.
...%d buttons, %d axes.", e.gamepad.index, e.gamepad.id, e.gamepad.buttons.length, e.gamepad.axes.length); }); and on a window.gamepaddisconnected event.
... window.addeventlistener("gamepaddisconnected", function(e) { console.log("gamepad disconnected from index %d: %s", e.gamepad.index, e.gamepad.id); }); specifications specification status comment gamepadthe definition of 'gamepadevent' in that specification.

Window - Web APIs
window.ongamepaddisconnected represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).
... gamepaddisconnected fired when the browser detects that a gamepad has been disconnected.
... also available via the ongamepaddisconnected property history events hashchange fired when the fragment identifier of the url has changed (the part of the url beginning with and following the # symbol).

Desktop gamepad controls - Game development
the connect() and disconnect() functions are bound to the following events: window.addeventlistener("gamepadconnected", gamepadapi.connect); window.addeventlistener("gamepaddisconnected", gamepadapi.disconnect); they are fired when the gamepad is connected and disconnected respectively.

Gamepad - Web APIs
a gamepad object can be returned in one of two ways: via the gamepad property of the gamepadconnected and gamepaddisconnected events, or by grabbing any position in the array returned by the navigator.getgamepads() method.

GamepadEvent() - Web APIs
syntax var gamepadevent = new gamepadevent(typearg, options) parameters typearg a domstring that must be one of gamepadconnected or gamepaddisconnected.

GamepadEvent.gamepad - Web APIs
the gamepadevent.gamepad property of the gamepadevent interface returns a gamepad object, providing access to the associated gamepad data for fired gamepadconnected and gamepaddisconnected events.

Gamepad API - Web APIs
window.ongamepaddisconnected represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).

Event reference
gamepaddisconnected gamepadevent gamepad a gamepad has been disconnected.