JSFiddle - React, Tailwind, and code Playground
by unloco
HTML
<ul>
<li><a href="#" id="NAV1">Captain</a></li>
<li><a href="#" id="NAV2">Obvious</a></li>
</ul>
CSS
.current{font-weight: bold}
JavaScript
$("[id^=NAV]").click(function(evt) {
$("[id^=NAV]").parent().removeClass('current');
$(this).parent().addClass('current');
evt.preventDefault();
});