02-02_map.html

"> 02-02_map "> 02-02_map ">
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>02-02_map</title>
<script src="<https://code.jquery.com/jquery-3.7.1.js>"></script>
<script type="text/javascript">
/*
 *  # .map()
  )  - $.map(배열명 or 객체명, function(value,index){
		  
       });
 */
	$(document).ready(function(){
		let city = ["서울", "부산", "광주", "제주도", "인천"];
		$.map(city, function(index, value){
			console.log(index + ' - ' + value);
		});
		
		let city_2 = $.map(city, function(value, index){
			if(index < 3) {
				return value; // return 이 실행되면 새로운 배열 생성.
			}
		});
		console.log(city_2.toString());
	});
</script>
</head>
<body>

</body>
</html>