isUsername property
Checks if string is a valid username.
Implementation
static final isUsername =
r'^[a-zA-Z0-9][a-zA-Z0-9_.]+[a-zA-Z0-9]$'.regPattern;
isUsername property
Checks if string is a valid username.
static final isUsername =
r'^[a-zA-Z0-9][a-zA-Z0-9_.]+[a-zA-Z0-9]$'.regPattern;