touch-events (original) (raw)

Even if a user agent supports Touch Events, this does not necessarily mean that a touchscreen is the only input mechanism available to users. Particularly in the case of touch-enabled laptops, or traditional "touch only" devices (such as phones and tablets) with paired external input devices, users may use the touchscreen in conjunction with a trackpad, mouse or keyboard. For this reason, developers should avoid binding event listeners with "either touch or mouse/keyboard" conditional code, as this results in sites/application that become touch-exclusive, preventing users from being able to use any other input mechanism.