JSFiddle - React, Tailwind, and code Playground

HTML

<p class="other-class one">Trigger</p>

CSS

.one {
    background: red;
}
.two {
    background: blue;
}
.other-class {
    text-decoration: underline;
}

JavaScript

$('.other-class').click(function () {
    if ($(this).hasClass('one')) 
        $(this).removeClass('one').addClass('two');
    else 
        $(this).removeClass('two').addClass('one');
});