Pagination issue in examples

I have found on issue with largeData example,
It looks like pagination in this case dos't work correct code in main.js:

self.getPagedDataAsync = function (pageSize, page, searchText) {
        setTimeout(function () {
            var data;
            if (searchText) {
                var ft = searchText.toLowerCase();
                data = largeLoad().filter(function (item) {
                    return JSON.stringify(item).toLowerCase().indexOf(ft) != -1;
                });
            } else {
                data = largeLoad();
            }
            //var pagedData = data.slice((page - 1) * pageSize, page * pageSize);
            self.myData(data);
            self.pagingOptions.totalServerItems(data.length);
        }, 100);
    }; 

show all data in grid not first. How to use pagination in correct way ?

Start in the largeData example's main.js at getPagedDataAsync, then compare the current data assignment with the commented slice expression. Run the example with a page size and confirm that the grid shows only the requested page while totalServerItems still reflects the full filtered data set.