JSFiddle - React, Tailwind, and code Playground

HTML

<div id="div1">
   <div id="div2">
     blah blah
   </div>
</div>

JavaScript

jQuery.fn.justtext = function() {
  
    return $(this).clone()
            .children()
            .remove()
            .end()
            .text();

};

jQuery.fn.justtextinner = function() {
  
    return $(this).clone()
            .children()
            .end()
            .text();

};

alert($('#div1').justtextinner());