<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var obj = {
a1 : "동해물과",
a2 : "백두산이"
};
obj = JSON.stringify(obj); // 객체를 문자화
localStorage.setItem("todolist", obj);
var a = localStorage.getItem("todolist");
a = JSON.parse(a); // 문자를 객체화
console.log(a);
var arr = ["2", "4", "6", "8"];
for(var i in arr) { // for~in 구문
console.log(i);
console.log(arr[i]);
}
</script>
</body>
</html>
Engineering is the closest thing to magic that exists in the world.