jquery-3: find/closet

Closest(a): 선택한 element랑 가장 가까운 a만 선택함

let $div= $section.find(a): section안에있는 a를 찾고 $div에 넣는다 (지역수사개념) • Find없는건 광역수사개념

<article>
  <nav></nav>
</article>
<article>
  <nav></nav>
</article>
<article>
  <nav></nav>
</article>

article{
  width:200px;
  height:200px;
  background-color:blue;
  margin:10px;
}
 
article nav{
  width:80%;
  height:80%;
  background-color:red;
}

$('nav').click(function(){
let $this = $(this);
  
let $article = $this.closest('article');
$article.css('background-color','gold')
})