Check If A String Is A Palindrome In Dart

Palindromes are patterns within texts that can improve our understanding of language and computational abilities. This article will help you understand how to verify if a string is a palindrome using Dart language.

Code snippet for Checking if a String is a Palindrome

In Dart, we can easily detect whether a string is a palindrome or not. Here’s a simple function that can do it:

bool isPalindrome(String str) {
  String reversed = str.split('').reversed.join('');
  return str == reversed;
}

You can use this function like so:

void main() {
  print(isPalindrome('madam'));  // true
  print(isPalindrome('hello'));  // false
}

Code Explanation for Checking if a String is a Palindrome

Let’s breakdown the function ‘isPalindrome’. The function isPalindrome takes a string str as an argument.

On the first line of the function, we’re reversing the string.

String reversed = str.split('').reversed.join('');

The split('') function breaks the string into a list of substrings. In this case it returns a list of all the characters.

reversed is a property that can be accessed to get an iterable that iterates over the elements of the list in reverse order.

With join('') we are converting back the Iterable to a string. This gives us a new string that is the reverse of the original.

Finally, the return line checks if the reversed string is equal to the input string:

return str == reversed;

If they are identical, this means the string is a palindrome, and the function will return true. Otherwise, it will return false.

That’s all! With these steps, you can check if any string is a palindrome using Dart.