Vibrates one connected gamepad, if it and the browser expose a dual-rumble actuator - a no-op otherwise, rather than throwing, since support is inconsistent across browsers and a game reaching for "juice" should not have to feature-test this itself.
Vibrates one connected gamepad, if it and the browser expose a dual-rumble actuator - a no-op otherwise, rather than throwing, since support is inconsistent across browsers and a game reaching for "juice" should not have to feature-test this itself.