JSFiddle - React, Tailwind, and code Playground

HTML

<div>1</div>
<div>1</div>
<div>2</div>
<div>3</div>
<div>3</div>
<div>3</div>

JavaScript

var div = $('div');

var values = [];
div.each(function() {
    var $i = $(this),
        value = $i.text();
    if (values.indexOf(value) != -1) {
        $i.remove();
        return;
    }
    
    values.push(value);
});