JSFiddle - React, Tailwind, and code Playground

by Sedbol

HTML

<a href="#" id="link">Мне нравится</a>
<span id="A1">0</span>

JavaScript

$(document).ready(function() {
    $('#link').on('click', function() {
        $('#A1').html(function() {
            return +this.innerHTML + 6;
        });
    });
});