JSFiddle - React, Tailwind, and code Playground

HTML

<div class="ot_name"> Владимир Тарасюк</div>
<div class="ot_ratting"> 
<i class="glyphicon glyphicon-star"></i> 
<i class="glyphicon glyphicon-star"></i> 
<i class="glyphicon glyphicon-star"></i> 
<i class="glyphicon glyphicon-star"></i> 
<i class="glyphicon glyphicon-star"></i>
</div>
<span class="out"></span>

JavaScript

$('.out').text($('.ot_ratting>i').length);