basic-js/test2.html at master · ShadeZP/basic-js · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>test</title>

</head>
<body>
    <script>
    calculateDepth ([1, [2 , [3, [4, [5, [6]]]]], 7, 8, [9]]);
    let arr1 = [1, 2, 3, [8, [2]], 4, 5, [], []]
    function calculateDepth(arr){
            let depth = 0;
            if (Array.isArray(arr)){
                for (let i = 0; i < arr.length; i++ ){
                    if (Array.isArray(arr[i])){
                        depth = Math.max (this.calculateDepth(arr[i]), depth)

                    };

                };
                ++depth;
            };
            return depth
        };

 alert (calculateDepth(arr1))
    </script>
</body>
</html>