JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">
    <input type="text" class="textboxes" id="text1"/>
    
     <input type="text" class="textboxes" id="text2"/>
    
     <input type="text" class="textboxes" id="text3"/>
    
     <input type="text" class="textboxes" id="text4"/>
    
    <input type="text" class="textboxes" id="text5"/>
    
    <button onclick="checker();" >Check</button>
    
    </div>

JavaScript

function checker(){
var bool = false;
    
    
$('.textboxes').each(function() {
  if (!$(this).val() == '') {
       bool = true;
  }
});
    alert(bool)
}