properties Onmouseover, onmouseout are impossible to set in SvgRectangle

[compunited]

I want to add atooltiptext on mouse over like the following sample

function showTooltip(evt, text) { let tooltip = document.getElementById("tooltip"); tooltip.innerHTML = text; tooltip.style.display = "block"; tooltip.style.left = evt.pageX + 10 + 'px'; tooltip.style.top = evt.pageY + 10 + 'px'; }

function hideTooltip() { var tooltip = document.getElementById("tooltip"); tooltip.style.display = "none"; }

but it seems impossible to fill thes properties in SvgRectangle