devicemotionevents sent to the window.
90, by which the device is turned left or right. See Orientation and motion data explained for details.
addmethod is used to add a file inside a given storage area.
addNamedmethod is used to add a file inside a given storage area.
available()method is used to check whether the storage area is available; this is an asynchronous operation that returns a
DOMRequestobject that will receive a callback when the operation is complete.