isAlpha static method

bool isAlpha(
  1. Map<String, dynamic> data,
  2. dynamic value,
  3. String args
)

check field is alphabetic

Implementation

static bool isAlpha(Map<String, dynamic> data, dynamic value, String args) {
  RegExp alphabeticRegex = RegExp(r'^[a-zA-Z]+$');
  return alphabeticRegex.hasMatch(value.toString());
}