js obj遍历.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>obj遍历</title>
</head>

<body>
    <script>
        var obj = {"a":1, "b":2, "c":3};
        for(let key in obj){
            console.log("key:", key);
        }
        // key: a
        // key: b
        // key: c
    </script>
</body>
</html>

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转载自blog.csdn.net/weixin_42193179/article/details/88734759