src code

instance method Element#cumulativeScrollOffset

Element#cumulativeScrollOffset() → Array

Calculates the cumulative scroll offset of an element in nested scrolling containers.

Returns an array in the form of [leftValue, topValue]. Also accessible as properties: { left: leftValue, top: topValue }.

This method can be called either as an instance method or as a generic method. If calling as a generic, pass the instance in as the first argument.