<div id="style">
<div class="house" data-sh="0">0</div>
<div class="house" data-sh="1">0</div>
<div class="house" data-sh="2">0</div>
<div class="house" data-sh="3">0</div>
</div>
<script>
var s =0;
var div = document.getElementById("style");
var dateTab = div.getElementsByClassName("house");
console.log(dateTab[3].
dataset.sh);
function tims(){
for(var i=0;i<dateTab.length;i++){
if (dateTab[i].
dataset.sh){
s++;
dateTab[i].innerHTML = s;
}
}
}
setInterval(tims, 1000);
tims();
</script>