JSFiddle - React, Tailwind, and code Playground
HTML
<div id="michal" class="element" data-index="1">
Pierwszy [1]
</div>
<div id="jacek" class="element" data-index="2">
Drugi [2]
</div>
<div id="zbigniew" class="element" data-index="3">
Trzeci [3]
</div>
<div id="roman" class="element" data-index="4">
Czwarty [4]
</div>
<div id="stefan" class="element" data-index="5">
Piaty [5]
</div>
JavaScript
$('div[class="element"]').each(function(index,item){
if(parseInt($(item).data('index'))>2){
var ajdi = jQuery('.element').attr('id');
$(item).html('Element \['+(index+1)+ '\] \(' + ajdi+ '\) w petli');
}
});