username static method

bool username(
  1. String str
)

Validate string as a username.

The str parameter should be a string representing a username.

Returns true if the str is valid, false otherwise.

Implementation

static bool username(String str) {
  String pattern = r'^[a-z0-9_-]{3,16}$';
  RegExp regExp = RegExp(pattern);
  return regExp.hasMatch(str);
}