deepcopy

<!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>
        let person = {
            name : 'ishu',
            Age : 230,
            friend : {
                name : 'jai',
                Age : 15,
                friend : {
                    name : 'yuvraj',
                    Age : 32,
                }
            }
        };
           const copy = (input) => {
            if (input === null || typeof input !== 'Object'){
                return input;
            }
            const a =  Array.isArray(input) ? [] : {} ;
            return object.keys(input).reduce((acc, key) =>{
                acc[key] = copy(input[key]);
                return acc;
            }, a);
            };
            const deepcopy = copy(person);
            console.log(person,deepcopy);
    </script>
    
</body>
</html>