isPalindrome static method
Checks if string is Palindrome. 检查字符串是否为回文
Implementation
static bool isPalindrome(String s) {
bool isPalindrome = true;
for (var i = 0; i < s.length; i++) {
if (s[i] != s[s.length - i - 1]) {
isPalindrome = false;
}
}
return isPalindrome;
}