Waypoint.viewportHeight()
Parameters
None.
Returns
The height of the window in px.
This is a convenience method for retrieving the height of the window. It also works around inconsistencies in iOS with window height reporting when the URL bar is present on screen.
$('button.show-viewport-height').on('click', function() {
notify('Viewport Height: ' + Waypoint.viewportHeight())
})
This method often comes in handy when writing function offsets. For example, if your waypoint has the default context of window
, the bottom-in-view alias works out to be the following function offset:
offset: function() {
return Waypoint.viewportHeight() - this.element.clientHeight
}