isValidPhoneNumber static method
Validate phone number format (E.164).
Checks if the phone number follows E.164 international format (+country code). Supports country codes from 1 to 3 digits and phone numbers up to 14 digits.
Parameters
phone
: The phone number to validate (e.g., '+254712345678')
Returns
true
if the phone number format is valid, false
otherwise.
Implementation
static bool isValidPhoneNumber(String phone) {
return _phoneRegex.hasMatch(phone);
}