JSFiddle - React, Tailwind, and code Playground

HTML

<div id="0">nula</div>
<div id="1">jedna</div>
<div id="2">dva</div>
<div id="3">tři</div>
<div id="4">čtyři</div>
<div id="5">pět</div>
<div id="6">šest</div>
<div id="7">sedm</div>
<div id="8">osm</div>
<div id="9">devět</div>

JavaScript

var row = 0;
var stop = setInterval(function () {
    var elm = document.getElementById(row);
    if (elm) {
        elm.innerHTML = 'Row ' + row++;
    } else {
        clearInterval(stop);
    }
}, 300);