url property
Implementation
static String url =
r'^(https?|ftp):\/\/[a-zA-Z0-9\-\.]+(?:\.[a-zA-Z]{2,})(?::\d{1,5})?(?:\/[^\s?#]*)?(?:\?[^\s#]*)?(?:#[^\s]*)?$';
static String url =
r'^(https?|ftp):\/\/[a-zA-Z0-9\-\.]+(?:\.[a-zA-Z]{2,})(?::\d{1,5})?(?:\/[^\s?#]*)?(?:\?[^\s#]*)?(?:#[^\s]*)?$';