Hide empty checkbox filter value on text area

A Quick and dirty way to hide the annoying but useful [] (empty) checkbox on a checkbox filter in a text area:


html
<div id=filter onmouseover=hideEmpty()>
<SpotfireControl id="7daf87b0152b448a8fa82353af350875" />
</div>


js
var hideEmpty = function(){
document.querySelectorAll("#filter .sf-element.sf-element-filter-item:last-child")[0].style.display='none'
}

if(this['ps']) clearInterval(ps)
ps = setInterval(hideEmpty,100)