w method
Used to log a message
with warn severity level.
// Create log instance with a tag
static final log = Log("UserRepository");
// ...
// log a message
log.w("User name is empty");
// output:
// [10:45:32] - UserRepository - [WARN ]: User name is empty
Implementation
void w(String message) {
if (level >= warn) _print('WARN ', message);
}