<a class="site" href="http://www.naver.com"
target="_self" title="네이버">네이버</a>
$('a.site').html('다음').attr('href','http://www.daum.net')
.attr('target','_blank').attr('title','다음').css('color','orange');
const siteEl = document.querySelector('a.site');
siteEl.textContent = '다음';
siteEl.setAttribute('href','http://www.daum.net');
siteEl.setAttribute('target','_blank');
siteEl.setAttribute('title','다음');
siteEl.style.color = 'orange';
전
후
<예시>
<ul class="menu">
<li class="item1">item1</li>
<li class="item2">item2</li>
<li class="item3">item3</li>
<li class="item4">item4</li>
</ul>
$('ul.menu').find('.item1').css('background-color','red').end().find('.item4').css('background-color','blue');