ipAddress property
IP Address regex
Implementation
static String ipAddress =
r'^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.('
r'25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.('
r'25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.('
r'25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$';