JavaScript遍历JSON对象与数组的方法

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>

<body>
    <script type="text/javascript">
    var data = { name: '小花', age: '17岁', sex: '男' };
    for (var a in data) {
        console.log('这是属性名' + a); /*属性名*/
        console.log('属性值' + data[a]); /*属性值*/
    };
    </script>
</body>

</html>

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>

<body>
    <script type="text/javascript">
    var a = ['橡胶', '苹果', '土豆'];
    for (var x in a) {
        console.log('在数组中的位置 - '+x); /*在数组中的位置*/
        console.log('值 - '+a[x]); /*值*/
    };
    </script>
</body>

</html>