<!DOCTYPE html>
<html>
    <head>
        <meta charset=utf-8>
    </head>
    <body>
    	
        <script type="text/javascript">
            const _isPalindrome = string => {
                // 补全代码
                let oldArr = string.split("");
                let newArr = oldArr.reverse();
                for(let i = 0; i < oldArr.length; i++){
                    if (oldArr[i] != newArr[i]) {
                        return false;
                    }
                    return true;
                }
            }
        </script>
    </body>
</html>