World University Rankings 2024 - Stacked Bar Chart

le('top', event.pageY - 10 + 'px') .style('left', event.pageX + 10 + 'px'); }) .on('mouseout', () => { tooltip.style('display', 'none'); }); bars.exit().remove(); }; updateChart(); // Sorting functionality d3.selectAll('.sort-btn').on('click', function () { const sortKey = d3.select(this).attr('data-sort'); updateChart(sortKey); });