import 'dart:developer' as developer;

​

void main() {

  developer.log('log me', name: 'my.app.category');

​

  developer.log('log me 1', name: 'my.other.category');

  developer.log('log me 2', name: 'my.other.category');

}

import 'dart:convert';

import 'dart:developer' as developer;

​

void main() {

  var myCustomObject = ...;

​

  developer.log(

    'log me',

    name: 'my.app.category',

    error: jsonEncode(myCustomObject),

  );

}

import 'dart:developer';

​

void someFunction(double offset) {

  debugger(when: offset > 30.0);

  // ...

}

stderr.writeln('print me');

 onPressed: () async {

                  setState(() {

                    sponner = true;

                  });

                  try {

                    final newUser = await _auth.signInWithEmailAndPassword(

                        email: email, password: password);

                    if (newUser != null) {

                      Navigator.pushNamed(context, ChatScreen.id);

                    }

                    sponner = false;

                  } catch (e) {

                    print(e);

                  }

                },