JSFiddle - React, Tailwind, and code Playground

HTML

<div class="selectme">Some text to highlight</div>
<div> Don't select this </div>
<div class="selectme">Select this text too.</div>
<br>
<p>Click me!</p>

JavaScript

function SelectText(element) {
    console.log(element);
    var strongs = document.getElementsByClassName(element);
    var s = window.getSelection();
    console.log(s);
    if(s.rangeCount > 2) s.removeAllRanges();

    for(var i = 0; i < strongs.length; i++) {
      var range = document.createRange();
      range.selectNode(strongs[i]);
      s.addRange(range);
        console.log("test: " +i);
    }
}

$(document).ready(function(){
    $('p').click(function() {
            myClass="selectme";
           SelectText(myClass);   
    });
});