getVisibleCount

counts the items that can be seen with the current view height

number getVisibleCount();

number

the number of visible items

var count = $$("mylist").getVisibleCount();

Details

The method will not work for list with variable item height.

webix.ui({
    view:"mylist",
    type:{ height:"auto" }
});
var count = $$("mylist").getVisibleCount(); //NaN