startsWithPlusAndContainsOnlyNumbers property

bool get startsWithPlusAndContainsOnlyNumbers

Returns true if this string starts with a plus sign and contains only numeric digits after it.

This is commonly used for validating international phone number formats.

Example:

'[phone]'.startsWithPlusAndContainsOnlyNumbers; // returns: true
'123456789'.startsWithPlusAndContainsOnlyNumbers; // returns: false

Implementation

bool get startsWithPlusAndContainsOnlyNumbers {
  return regexStartsWithPlusAndThenOnlyNumbers.hasMatch(this);
}