$("선택자").each(function(매개변수1, 매개변수2){});
$.each($("선택자"), function(매개변수1, 매개변수2){});
$("선택자").each(function(){$(this)});
$.each{$("선택자"), function(){$(this)});
<script>
$(function(){
var obj = [{
"area" : "서울"
},{
"area" : "부산"
},{
"area" : "전주"
}]
$(obj).each(function(i, o){
console.log(i + ":", o);
});
console.log("====The End1====");
$.each($("#menu1 li"), function(i, o){
console.log(i + ":", o);
});
console.log("====The End2====");
$.each($("menu2 li"), function(i){
console.log(i = ":", $(this));
});
});
</script>
</head>
<body>
<h1>탐색 선택자</h1>
<ul id="menu1">
<li>내용1-1</li>
<li>내용1-2</li>
<li>내용1-3</li>
</ul>
<ul id="menu2">
<li>내용2-1</li>
<li>내용2-2</li>
<li>내용2-3</li>
</ul>
</body>