Sencha Charts Essentials. Create stunning charts and visualizations for both web and mobile applications

Ajit Kumar

Server Side development with Node.js and Koa.js Quick Start Guide. Build robust and scalable web applications with modern JavaScript techniques

Olayinka Omole

Every developer wants to build modular and scalable web applications. Modern versions of JavaScript have made this possible in Node.js, and Koa is a Node.js framework that makes it easy. This book is the ideal introduction for JavaScript developers who want to create scalable server side applications using Node.js and Koa.js.The book shows you how Koa can be used to start projects from scratch, register custom and existing middleware, read requests, and send responses to users. We will explore the core concepts in Koa, such as error handling, logging, and request and response handling. We will dive into new concepts in JavaScript development, and see how paradigms such as async/await help with modern Node.js application development.By the end of this book, you will be building robust web applications in Koa using modern development paradigms and techniques of Node.js development.

Serverless Web Applications with React and Firebase. Develop real-time applications for web and mobile platforms

Harmeet Singh, Mayur Tanna

ReactJS is a wonderful framework for UI development. Firebase as a backend with React is a great choice as it is easy, powerful, and provides great developer experience. It removes a lot of boilerplate code from your app and allows you to focus on your app to get it out quickly to users. Firebase with React is also a good choice for Most Viable Product (MVP) development.This book provides more practical insights rather than just theoretical concepts and includes basic to advanced examples – from hello world to a real-time seat booking app and Helpdesk applicationThis book will cover the essentials of Firebase and React.js and will take you on a fast-paced journey through building real-time applications with Firebase features such as Cloud Storage, Cloud Function, Hosting and the Realtime Database. We will learn how to secure our application by using Firebase authentication and database security rules. We will leverage the power of Redux to organize data in the front-end, since Redux attempts to make state mutations predictable by imposing certain restrictions on how and when updates can happen. Towards the end of the book you will have improved your React skills by realizing the potential of Firebase to create real-time serverless web applications.

Server-Side Enterprise Development with Angular. Use Angular Universal to pre-render your web pages, improving SEO and application UX

Bram Borggreve

With the help of Server-Side Enterprise Development with Angular, equip yourself with the skills required to create modern, progressive web applications that load quickly and efficiently. This fast-paced book is a great way to learn how to build an effective UX by using the new features of Angular 7 beta, without wasting efforts in searching for referrals.To start off, you'll install Angular CLI and set up a working environment, followed by learning to distinguish between the container and presentational components. You'll explore advanced concepts such as making requests to a REST API from an Angular application, creating a web server using Node.js and Express, and adding dynamic metadata. You'll also understand how to implement and configure a service worker using Angular PWA and deploy the server-side rendered app to the cloud.By the end of this book, you'll have developed skills to serve your users views that load instantly, while reaping all the SEO benefits of improved page indexing.

SharePoint Development with the SharePoint Framework. Design and implement state-of-the-art customizations for SharePoint

Jussi Roine, Olli Jääskeläinen

SharePoint is one of Microsoft's best known web platforms. A loyal audience of developers, IT Pros and power users use it to build line of business solutions. The SharePoint Framework (SPFx) is a great new option for developing SharePoint solutions. Many developers are creating full-trust based solutions or add-in solutions, while also figuring out where and how SPFx fits in the big picture. This book shows you how design, build, deploy and manage SPFx based solutions for SharePoint Online and SharePoint 2016. The book starts by getting you familiar with the basic capabilities of SPFx. After that, we will walk through the tool-chain on how to best create production-ready solutions that can be easily deployed manually or fully automated throughout your target Office 365 tenants.We describe how to configure and use Visual Studio Code, the de facto development environment for SPFx-based solutions. Next, we provide guidance and a solid approach to packaging and deploying your code. We also present a straightforward approach to troubleshooting and debugging your code an environment where business applications run on the client side instead of the server side.

Simplify Testing with React Testing Library. Create maintainable tests using RTL that do not break with changes

Scottie Crump

React Testing Library (RTL) is a lightweight and easy-to-use tool for testing the document object model (DOM) output of components. This book will show you how to use this modern, user-friendly tool to test React components, reducing the risk that your application will not work as expected in production.The book demonstrates code snippets that will allow you to implement RTL easily, helping you to understand the guiding principles of the DOM Testing Library to write tests from the perspective of the user. You'll explore the advantages of testing components from the perspective of individuals who will actually use your components, and use test-driven development (TDD) to drive the process of writing tests. As you advance, you'll discover how to add RTL to React projects, test components using the Context API, and also learn how to write user interface (UI) end-to-end tests using the popular Cypress library. Throughout this book, you’ll work with practical examples and useful explanations to be able to confidently create tests that don't break when changes are made.By the end of this React book, you will have learned all you need to be able to test React components confidently.

Single Page Web Applications. Programowanie aplikacji internetowych z JavaScript

Michael Mikowski, Josh Powell

Gdy uruchamiasz aplikację na swoim komputerze, tak naprawdę nie wiesz, czy jest to tradycyjna aplikacja działająca na Twoim sprzęcie czy też może aplikacja internetowa. Nie widać przejść między stronami, a atrakcyjny interfejs użytkownika pozwala Ci błyskawicznie wykonać konieczne zadania. Być może za wyświetlanie interfejsu odpowiedzialna jest wyłącznie przeglądarka, która z serwerem komunikuje się tylko w celu wymiany danych. Tak właśnie działają jednostronicowe aplikacje internetowe (ang. Single Page Applications). Jeżeli masz pomysł na taką aplikację, a nie wiesz, od czego zacząć, sięgnij po tę książkę. Dzięki niej zbudujesz swoją pierwszą jednostronicową aplikację internetową oraz poznasz możliwości współczesnego języka JavaScript. W kolejnych rozdziałach będziesz budować aplikację, jednocześnie zdobywając wiedzę na temat wzorca MVC, modelu danych, modułów oraz interfejsu. Kiedy już opanujesz tworzenie klienta, przyjdzie czas na implementację serwera. Jest on odpowiedzialny za przetwarzanie danych otrzymywanych z przeglądarki. W trakcie lektury poznasz możliwości Node.js oraz skonfigurujesz bazę danych. Na sam koniec przygotujesz Twoją aplikację do pracy w środowisku produkcyjnym. Dzięki tej książce: poznasz możliwości języka JavaScript skorzystasz ze wzorca MVC zbudujesz jednostronicową aplikację internetową skonfigurujesz serwer współdziałający z Twoją aplikacją wykorzystasz potencjał Node.js Zbuduj swoją pierwszą jednostronicową aplikację internetową!

Solidity Programming Essentials. A beginner's guide to build smart contracts for Ethereum and blockchain

Ritesh Modi

Solidity is a contract-oriented language whose syntax is highly influenced by JavaScript, and is designed to compile code for the Ethereum Virtual Machine. Solidity Programming Essentials will be your guide to understanding Solidity programming to build smart contracts for Ethereum and blockchain from ground-up.We begin with a brief run-through of blockchain, Ethereum, and their most important concepts or components. You will learn how to install all the necessary tools to write, test, and debug Solidity contracts on Ethereum. Then, you will explore the layout of a Solidity source file and work with the different data types. The next set of recipes will help you work with operators, control structures, and data structures while building your smart contracts. We take you through function calls, return types, function modifers, and recipes in object-oriented programming with Solidity. Learn all you can on event logging and exception handling, as well as testing and debugging smart contracts.By the end of this book, you will be able to write, deploy, and test smart contracts in Ethereum. This book will bring forth the essence of writing contracts using Solidity and also help you develop Solidity skills in no time.