JSFiddle - React, Tailwind, and code Playground

by Barry Margolin

HTML

<ul class="s_1" id="ULE">
    <li class="r1">A</li>
    <li class="r1">A</li>    
    <li class="r1">B</li>
    <li class="r1">A</li>  
    <li class="r1">A</li>  
</ul>

JavaScript

var LI = document.getElementById('ULE').getElementsByClassName('r1');
var cnt = 0;
for(var i=0;i<LI.length;i+=1){
    if(LI[i].innerHTML == 'A'){
        cnt += 1;
    }
}

if(cnt === 4) 
      alert('working good!!');