JSFiddle - React, Tailwind, and code Playground

HTML

<code class="hidden_elem" id="ukftg4w44">
<!-- <div class="mtm mlm">
<span class="uiButtonGroup actionsContents uiButtonGroupOverlay" id="uqiq2c137"><span class="firstItem uiButtonGroupItem buttonItem"><a class="uiButton uiButtonOverlay uiButtonLarge" href="/messages/nurulsuaidah" role="button" rel="dialog" ajaxify="/ajax/messaging/composer.php?ids%5B0%5D=100001376407191"><span class="uiButtonText">Message</span></a></span><span class="lastItem uiButtonGroupItem selectorItem"><div class="uiSelector inlineBlock fbTimelineActionSelector uiSelectorRight"><div class="wrap"><a class="fbTimelineActionSelectorButton uiSelectorButton uiButton uiButtonOverlay uiButtonLarge uiButtonNoText" href="#" role="button" aria-label="Other actions" aria-haspopup="1" rel="toggle"><i class="mrs img sp_tiitwu sx_0356ea"></i><span class="uiButtonText"></span></a><div class="uiSelectorMenuWrapper uiToggleFlyout"><div class="uiMenuContainer uiSelectorMenu"><div role="menu" class="uiMenu" id="uqiq2c139"><ul class="uiMenuInner"><li class="uiMenuItem" data-label="See Friendship"><a class="itemAnchor" role="menuitem" tabindex="0" href="/profile.php?id=100004233966491&amp;and=100001376407191"><span class="itemLabel fsm">See Friendship</span></a></li><li class="uiMenuSeparator"></li><li class="uiMenuItem" data-label="Poke" id="profile_action_poke"><a class="itemAnchor" role="menuitem" tabindex="-1" href="#" ajaxify="/ajax/poke_dialog.php?uid=100001376407191&amp;pokeback=0&amp;ask_for_confirm=0" rel="dialog-post"><span class="itemLabel fsm">Poke</span></a></li><li class="uiMenuSeparator"></li><li class="uiMenuItem" data-label="Add to Interest Lists..." id="uqiq2c140"><a class="itemAnchor" role="menuitem" tabindex="-1" href="#"><span class="itemLabel fsm">Add to Interest Lists...</span></a></li><li class="uiMenuSeparator"></li><li class="uiMenuItem" data-label="Suggest Friends..." id="profile_action_suggest_friends"><a class="itemAnchor" role="menuitem" tabindex="-1"...

JavaScript

// http://stackoverflow.com/a/5158301/74757
function getParameterByName(name, path) {
    var match = RegExp('[?&]' + name + '=([^&]*)').exec(path);
    return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
}

var href = $($('.hidden_elem')[0].innerHTML.replace('<!--', '').replace('-->', ''))
    .find('.itemAnchor')
    .filter(function() {
        return /(\?|&)h=/.test(this.href);
    }).attr('href');alert(href);
var fbId = getParameterByName('h', href);alert(fbId);