PeterHdd

void main(){
 Map<dynamic, dynamic> values=<dynamic,dynamic>{"Name":"Peter","age":21};
 var name=values["Name"];
  print("My name is ${name}, and my age is ${values["age"]}.");
}

PeterHdd

class Employee {
  
  Employee()
  {
    print("inside default");
  }
  // Person does not have a default constructor;
  // you must call super.fromJson(data).
  Employee.fromJson(Map data){
    print('in Employee');

PeterHdd

void main(){
  var rest;
  rest = [{"name" : "peter","family" :"hi"},{"name": "john"},{"name": "peter"},{"name": "peter"}];
       var filteredList;
      filteredList = rest.where((val) => val["name"] == "peter");
      print(filteredList);
 

}

PeterHdd

// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override

PeterHdd

// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override

PeterHdd

class _MyHomePageState extends State<MyHomePage> {
  final fb = FirebaseDatabase.instance;
  final myController = TextEditingController();
  final name = "Name";

  @override
  Widget build(BuildContext context) {
    final ref = fb.reference();
    return Scaffold(
        appBar: AppBar(

PeterHdd

var retrievedName;          

            ElevatedButton(
              onPressed: () {
                ref.child("Name").once().then((DataSnapshot data){
                  print(data.value);
                  print(data.key);
                  setState(() {
                    retrievedName = data.value;
                  });

PeterHdd

void main() {
  List name = [{
    "restaurant_id": "1010000001",
	"restaurant_name": "UNI Resto Cafe",
	"restaurant_image": "http://restaurants.unicomerp.net/images/Restaurant/1010000001.jpg",
	"table_id": "1",
	"table_name": "Riyadh-Table 01",
	"branch_name": "UNI Resto Cafe-Riyadh",
	"nexturl": "http://snapittapp.snapitt.net/api/menu/10/?org=1010000001&branch_id=1000000001&limit=10&offset=20&lang=en",
	"table_menu_list": [{

PeterHdd

import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_database/firebase_database.dart';
import 'package:firebase_test/home.dart';
import 'package:flutter/material.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

PeterHdd

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}