getNthLatinLetterLower static method

String? getNthLatinLetterLower(int n)

Returns the n-th letter of the alphabet in lowercase.

• n is an integer representing the position of the letter in the alphabet (1 = a, 2 = b, etc.).

Returns a string containing the n-th letter of the alphabet in lowercase, or null if n is not within the valid range or an error occurs.

Implementation

static String? getNthLatinLetterLower(int n) {
  // Check if n is within the valid range.
  if (n < 1 || n > 26) {
    // If n is not within the valid range, return null.
    return null;
  }

  // Calculate the Unicode code point of the n-th letter of the alphabet.
  final int codePoint = 'a'.codeUnitAt(0) + n - 1;

  // Create a new string from the Unicode code point and return it.
  return String.fromCharCode(codePoint);
}