通过tostring方法将数字转化为字符串再用repeat方法填满数组,最后用map方法将字符数组转化为字符串数组

<!DOCTYPE html>
<html>
    <head>
        <meta charset=utf-8>
    </head>
    <body>

        <script type="text/javascript">
            const _createArray = (number) => {
                // 补全代码
                var kk=number.toString().repeat(number);
                return kk.split('').map(Number);
            }
            // console.log(_createArray(5));
        </script>
    </body>
</html>