JSFiddle - React, Tailwind, and code Playground
by ponyspy
HTML
<div class="cool"></div>
<div class="cool"></div>
<div class="cool"></div>
<div class="cool"></div>
<div class="cool"></div>
<div class="zlo">1</div>
JavaScript
var one = $('<div>', {'text': '1111'})
var two = $('<div>', {'text': '2222', class: 'cool'})
var three = $('<div>', {'text': '2222'})
var four = $('<div>', {'text': '2222'})
var arr = $([one, two, three, four]).map($.fn.toArray);
arr.toArray().some(function(item) {
return arr.filter(item).hasClass('cool')
? $(item).text('zlo')
: false;
}) || $('.zlo').text('none');
$('.zlo').append(arr)