jQuery toggleClass example
Toggle class name on click in jQuery
HTML
<div class="team">
<div class="team_single">1</div>
<div class="team_single">2</div>
<div class="team_single">3</div>
<div class="team_single">4</div>
<div class="team_single">5</div>
<div class="team_single">6</div>
<div class="team_single">7</div>
<div class="team_single">8</div>
<div class="team_single">9</div>
<div class="team_single">10</div>
</div>
JavaScript
const divs = $(".team > .team_single");
for (let i = 0; i < divs.length; i += 2) {
divs.slice(i, i + 2).wrapAll("<div class='new'></div>");
}