isPalindromes function

bool isPalindromes(String text)

Checks if the given text is a palindromes.

Ignores spaces and is case-insensitive.

Example:

bool result = isPalindromes("A man a plan a canal Panama");
print(result); // true

Implementation

bool isPalindromes(String text) {
  String cleaned = text.replaceAll(RegExp(r'\s+'), '').toLowerCase();

  int start = 0;
  int end = cleaned.length - 1;

  while (start < end) {
    if (cleaned[start] != cleaned[end]) {
      return false;
    }
    start++;
    end--;
  }

  return true;
}