tt_CHARAT function

dynamic tt_CHARAT(
  1. dynamic v1,
  2. dynamic v2
)

tt_CHARAT(str, n): gets the nth character (1-based)

Implementation

dynamic tt_CHARAT(dynamic v1, dynamic v2) {
  final s = varToStr(v1);
  final n = varToInt(v2) - 1;
  if (n < 0 || n >= s.length) return '';
  return s[n];
}