React

Die praktische Einführung in React, React Router und Redux

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Author: Oliver Zeigermann,Nils Hartmann

Publisher: dpunkt.verlag

ISBN: 3864919649

Category: Computers

Page: 342

View: 576

React ist ein JavaScript-Framework zur Entwicklung von Benutzeroberflächen sowohl im Browser als auch auf Mobilgeräten. Entwickelt und eingesetzt von Facebook ist es mittlerweile als Open-Source-Projekt verfügbar und hat sich bereits im Einsatz bei diversen namhaften Websites, wie z. B. Airbnb und Netflix, bewährt. Dieses Buch stellt Ihnen die Konzepte von React, React Router und Redux anhand eines durchgehenden Beispiels vor. Sie lernen, wie Sie mit React wiederverwendbare UI-Komponenten entwickeln und wie Sie auf Basis der einzelnen Komponenten ganze Anwendungen zusammenbauen. Unter anderem werden folgende Themen behandelt: - Entwickeln und Testen eigener React-Komponenten auf Basis des JavaScript-Standards ECMAScript 2015 (ES6) - Routing mit dem React Router - Das Architektur-Modell Flux und wie damit komplette Anwendungen umgesetzt werden (am Beispiel des Redux-Frameworks) - Serverseitiges Rendern von React-Komponenten und -Anwendungen - Anbindung eines REST-Backends Die im Buch eingesetzten Sprachfeatures aus ES6 werden in einem eigenen Kapitel vorgestellt, sodass zum Verständnis des Buches Kenntnisse von ES5 ausreichen. Nach der Lektüre des Buches werden Sie in der Lage sein, eigene Projekte mit React umzusetzen.

React Native

Native Apps parallel für Android und iOS entwickeln

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Author: Erik Behrends

Publisher: O'Reilly

ISBN: 396010202X

Category: Computers

Page: 260

View: 4314

Mit dem Open-Source-Framework React Native entwickeln Sie plattformübergreifend vollwertige native Apps mit JavaScript. Der Einstieg in die App-Entwicklung ist durch dieses Framework so einfach wie nie zuvor. Dieses Buch zeigt Ihnen, wie Apps parallel für Android und iOS mit einer weitgehend einheitlichen Codebasis umgesetzt werden. Sie benötigen dazu lediglich grundlegende Programmiererfahrung, idealerweise in JavaScript. Schneller Einstieg: Testen Sie schon nach wenigen Minuten Ihre erste App auf dem Smartphone. Mit dem App-Entwicklungstool Expo können Sie iOS-Apps sogar ohne einen eigenen Mac entwickeln.Praxisnahe Beispiel-App: Entwickeln Sie schrittweise parallel für Android und iOS eine Tagebuch-App mit typischen Features wie dem Einbinden von Fotos und dem Abfragen und Darstellen aktueller Wetterdaten für den Standort des Users.Relevantes Basiswissen: Verstehen Sie die Grundlagen: Das Buch beschreibt alle relevanten Features neuerer JavaScript-Versionen und grundlegende Konzepte des Frameworks.Aufbau und Darstellung von Apps: Lernen Sie wichtige APIs und UI-Komponenten wie Listen kennen und erfahren Sie, wie Sie mit dem Flexbox-Layout ein Styling realisieren, das sich verschiedenen Displaygrößen anpasst.Besonderheiten mobiler Apps: Fassen Sie mehrere Screens durch react-navigation in einer geeigneten Navigationsstruktur zusammen und erhalten Sie Einblick in den Umgang mit Touch-Gesten und Animationen.Für jedes Kapitel stehen die relevanten Codebeispiele als Download auf der Webseite zum Buch bereit.

Durchstarten mit React

Web-Apps einfach und modular entwickeln

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Author: Stoyan Stefanov

Publisher: O'Reilly

ISBN: 3960100914

Category: Computers

Page: 212

View: 3137

Eignen Sie sich ohne Ballast alles Wesentliche zur Frontendentwicklung mit React an – einer JavaScript-Bibliothek, die in Entwicklerkreisen derzeit auf großes Interesse stößt. In diesem praktischen Leitfaden erläutert Stoyan Stefanov, Webentwickler bei Facebook, Reacts Komponentenarchitektur und zeigt, wie Sie in kurzer Zeit komplexe und dennoch wartbare Webanwendungen entwickeln. Sie benötigen keine besonderen Vorkenntnisse – lediglich Grundkenntnisse der JavaScript-Syntax – und können sofort loslegen. Haben Sie einmal verstanden, wie React funktioniert, werden Sie eine maßgeschneiderte eigene App bauen, mit der Anwender Weine bewerten und ergänzende Notizen erfassen können. Sie verstehen dann schnell, warum so viele Entwickler React als Schlüsseltechnologie der modernen Webentwicklung sehen. - Richten Sie React ein und schreiben Sie Ihre erste "Hallo Welt"-Web-App. - Erstellen und verwenden Sie eigene React-Komponenten, die aus generischen DOM-Komponenten aufgebaut sind. - Bauen Sie eine Komponente für eine Datentabelle, mit der Sie deren Inhalt bearbeiten, sortieren, durchsuchen und exportieren können. - Verwenden Sie die Syntaxerweiterung JSX als Alternative zu Funktionsaufrufen. - Richten Sie einen übersichtlichen, einfachen Build-Prozess ein, der Ihnen hilft, das Augenmerk auf React zu legen. - Erstellen Sie eine vollständige Anwendung, mit der Sie Daten auf dem Client speichern können. - Setzen Sie ESLint, Flow und Jest ein, um den Code Ihrer komplexer werdenden Anwendung zu testen. - Organisieren Sie mit Flux die Kommunikation zwischen Komponenten.

Learning React

Functional Web Development with React and Redux

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Author: Alex Banks,Eve Porcello

Publisher: "O'Reilly Media, Inc."

ISBN: 1491954574

Category: Computers

Page: 350

View: 6576

If you want to learn how to build efficient user interfaces with React, this is your book. Authors Alex Banks and Eve Porcello show you how to create UIs with this small JavaScript library that can deftly display data changes on large-scale, data-driven websites without page reloads. Along the way, you’ll learn how to work with functional programming and the latest ECMAScript features. Developed by Facebook, and used by companies including Netflix, Walmart, and The New York Times for large parts of their web interfaces, React is quickly growing in use. By learning how to build React components with this hands-on guide, you’ll fully understand how useful React can be in your organization. Learn key functional programming concepts with JavaScript Peek under the hood to understand how React runs in the browser Create application presentation layers by mounting and composing React components Use component trees to manage data and reduce the time you spend debugging applications Explore React’s component lifecycle and use it to load data and improve UI performance Use a routing solution for browser history, bookmarks, and other features of single-page applications Learn how to structure React applications with servers in mind

React.js Essentials

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Author: Artemij Fedosejev

Publisher: Packt Publishing Ltd

ISBN: 1782174621

Category: Computers

Page: 208

View: 8694

A fast-paced guide to designing and building scalable and maintainable web apps with React.js About This Book Build maintainable and performant user interfaces for your web applications using React.js Create reusable React.js components to save time and effort in maintaining your user interfaces Learn how to build a ready-to-deploy React.js web application, following our step-by-step tutorial Who This Book Is For If you're a front-end developer with knowledge of jQuery and its libraries, along with frameworks, such as Angular.JS and Backbone.JS, or native JavaScript development, and you wish to use the fastest web user interface library there is, then this book is ideal for you. What You Will Learn Install powerful React.js tools to make development much more efficient Create React elements with properties and children Get started with stateless and stateful React components Use JSX to speed up your React.js development process Add reactivity to your React components with lifecycle methods Integrate your React components with other JavaScript libraries Utilize the Flux application architecture with your React components Test your React components with Jest test framework In Detail Building web applications with maintainable and performant user interfaces is a challenge that many have faced for more than a decade, but no one has risen to this challenge quite like React.js. Today React.js is used by Facebook, Instagram, Khan Academy, and Imperial College London, to name a few. Many new users recognize the benefits of React.js and adopt it in their own projects, forming a fast-growing community. The speed at which React.js has evolved promises a bright future for those who invest in learning it today. React.js Essentials will take you on a fast-paced journey through building your own maintainable React.js application. Begin by exploring how you can create single and multiple user interface elements. Create stateless and stateful components and make them reactive, learn to interact between your components and lifecycle methods and gauge how to effectively integrate your user interface components with other JavaScript libraries. Delve deep into the core elements of the Flux architecture and learn how to manage your application using stores. Finish by going that extra mile with the Jest test framework, running multiple tests on your application and find solutions to scale it further without complexity. Style and approach The book adopts a step-by-step, hands-on approach with ample codes to ensure you learn React.js at a fast pace.

React

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Author: Jacob Dotson

Publisher: Jacob Dotson

ISBN: 1442178124

Category:

Page: 112

View: 3649

In today's society, teenagers are confronted with issues that no other generation has encountered. These pressures of life often seem unbearable. React challenges readers to look to God in times of trouble and seek His strength and guidance.

Think, Act, Stay Safe with the R.E.A.C.T Approach to Self Defence

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Author: Stephen W. Collins

Publisher: Steve Collins

ISBN: 0007102364

Category: Sports & Recreation

Page: 160

View: 9376

As the newspapers and television constantly remind us, violent crime is on the increase, violence that can strike at you anywhere and at any time - on holiday, at work, on nights' out or during any one of a thousand everyday situations. But even if you are confronted by the unthinkable, you don't have to become a victim. This important new book shows you how you can protect yourself regardless of your age, sex or level of fitness by using the simple but effective REACT formula: R: Recognise E: Evaluate A: Alternatives C: Concentrate T: Terminate Using clear and concise step-by-step instructions, reinforced with many illustrations and diagrams, each of these five basic principles is expanded and explained in such a way that they quickly become 'second nature'. Following this sequence in any circumstance will allow you to recognise potential threats, decide on the best form of action to take and equip you carry to this through. While The R.E.A.C.T. Self defence System does concentrate on a dozen or so straightforward but effective self-protection combat techniques, it is not just another self-defence book, full of impractical or ineffective martial arts routines. What it does is heig

The Must-React System

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Author: Kraig Kleeman

Publisher: iUniverse

ISBN: 0595489427

Category: Business & Economics

Page: 120

View: 4168

Every company that wants to continue growth needs their sales team to be proficient in finding and closing net-new opportunities. But, unfortunately, most sales persons are not good at gaining new business, much less performing even the most basic prospecting practices. There are a multitude of reasons for this phenomenon. But the biggest reason is that sales professionals are untrained in vital cold-calling techniques. Especially in the realm of cold-calling and prospecting. Further, there is a culture of sales resistance that exists, and few sales professionals are equipped to penetrate it. The Must-React System is written help all sales professionals master the art of persuasion, and especially in the important area of cold-calling, prospecting, sales pipeline development.

Act Or React

The Decision is Ours

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Author: Caz McCaslin

Publisher: B&H Publishing Group

ISBN: 1433606941

Category: Religion

Page: 208

View: 6033

Have you ever been moved to act? Have you ever taken a leap of faith, unsure where you would land? Maybe you weren’t completely ready to quit your job and go out on your own. Maybe you didn’t know how your co-workers would respond when you told them you were going to Uganda on a two-week mission trip. We have all stepped out on faith one time or another, in both big and small ways. But have you ever wondered why? What causes us to speak up when there is silence, what makes us finally put the for-sale sign in our front yard? What if we could pinpoint that moment in time, and figure out what moves people to act? Act or React will take us on a journey of discovery to find out how we go from standing on the sidelines to actually getting inthe game of life and playing with purpose. Author Caz McCaslin, founder and president of Upward Sports, shares his own story to help readers examine the ongoing process which moves us from thinking about doing something to actually doing something. Concepts like Awareness, Passion, Vision, Readiness, and Intentionality, will bring to light what we have to do to live others-focused. Do we react? Do we act? Or do we do both?

Getting Started with React

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Author: Doel Sengupta,Manu Singhal,Danillo Corvalan

Publisher: Packt Publishing Ltd

ISBN: 178528410X

Category: Computers

Page: 212

View: 7505

A light but powerful way to build dynamic real-time applications using ReactJS About This Book Learn how to develop powerful JavaScript applications using ReactJS Integrate a React-based app with an external API (Facebook login) while using React components, with the Facebook developer app Implement the Reactive paradigm to build stateless and asynchronous apps with React Who This Book Is For This book is for any front-end web or mobile-app developer who wants to learn ReactJS. Knowledge of basic JavaScript will give you a good head start with the book. What You Will Learn Understand the ReactJS basics through an overview Install and create your first React component Refactor the ReactJS component using JSX Integrate your React application with the Facebook login and Graph API, then fetch data from your liked pages in Facebook and display them in a browser Handle UI elements events with React, respond to users input, and create stateful components Use some core lifecycle events for integration and find out about ES6 syntaxes in the React world Understand the FLUX architecture and create an application using FLUX with React Make a component more reusable with mixins and validation helpers and structure your components properly Explore techniques to test your ReactJS code Deploy your code using webpack and Gulp In Detail ReactJS, popularly known as the V (view) of the MVC architecture, was developed by the Facebook and Instagram developers. It follows a unidirectional data flow, virtual DOM, and DOM difference that are generously leveraged in order to increase the performance of the UI. Getting Started with React will help you implement the Reactive paradigm to build stateless and asynchronous apps with React. We will begin with an overview of ReactJS and its evolution over the years, followed by building a simple React component. We will then build the same react component with JSX syntax to demystify its usage. You will see how to configure the Facebook Graph API, get your likes list, and render it using React. Following this, we will break the UI into components and you'll learn how to establish communication between them and respond to users input/events in order to have the UI reflect their state. You'll also get to grips with the ES6 syntaxes. Moving ahead, we will delve into the FLUX and its architecture, which is used to build client-side web applications and complements React's composable view components by utilizing a unidirectional data flow. Towards the end, you'll find out how to make your components reusable, and test and deploy them into a production environment. Finally, we'll briefly touch on other topics such as React on the server side, Redux and some advanced concepts. Style and approach The book follows a step-by-step, practical, tutorial approach with examples that explain the key concepts of ReactJS. Each topic is sequentially explained and contextually placed to give sufficient details of ReactJS.

Time to React

The Efficiency of International Organizations in Crisis Response

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Author: Heidi Hardt

Publisher: Oxford University Press

ISBN: 0199337128

Category: Political Science

Page: 272

View: 3875

In conflict-affected regions, delays in international response can have life or death consequences. The speed with which international organizations react to crises affects the prospects for communities to re-establish peace. Why then do some international organizations take longer than others to answer calls for intervention? To answer this question and explore options for reform, Time to React builds on contemporary scholarship with original data on response rates and interview evidence from 50 ambassadors across four leading organizations (AU, EU, OAS and OSCE). The explanation for variation in speed ultimately lies in core differences in institutional cultures across organizations. Although wealth and capabilities can strengthen a peace operation, it is the unspoken rules and social networks of peace and security committees at these organizations that dictate the pace with which an operation is established. This book offers a first analysis of the critical importance of and conditions shaping timeliness of crisis response by international organizations.

How NGOs React

Globalization and Education Reform in the Caucasus, Central Asia and Mongolia

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Author: Iveta Silova,Gita Steiner-Khamsi

Publisher: Kumarian Press

ISBN: 1565492579

Category: Education

Page: 303

View: 7267

* Critical retrospective on the first decades of the transition from planned to free-market economy in Central Asia * Contributions from both Eastern and Western scholars * Includes both theoretical NGO research and practical examples taken from experience During the important, early years of transition for the post-socialist countries in the Caucasus, Central Asia, and Mongolia, the Open Society Institute/Soros Foundation was arguably the largest and most influential network in the region. How NGOs React follows the Soros Foundation's educational reform programs there and raises larger questions about the role of NGOs in a centralist government, relationships NGOs have with international donors and development banks, and how projects are adopted and interpreted in different contexts. Case studies (authored by former or current educational experts of the Soros Network based in Armenia, Azerbaijan, Georgia, Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan, Turkmenistan, and Uzbekistan) look at the impact of capacity-building programs, the professional development of teachers, school administrators, government officials, textbook authors, publishers, teacher educators, and university lecturers, among others. Soros's particular focus on capacity-building and how this strategy was adopted across a wide area reveals much that will instruct NGOs working in international education policy. The unique combination of perspectives from Western as well as Eastern scholars based in the region makes this collection an essential retrospective on key processes involved in the transformation of closed societies into open and free ones.

NETWORK SECURITY TRACEBACK ATTACK AND REACT IN THE UNITED STATES DEPARTMENT OF DEFENSE NETWORK

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Author: EDMOND K. MACHIE

Publisher: Trafford Publishing

ISBN: 1466985747

Category: Technology & Engineering

Page: 198

View: 7152

Network Security and how to traceback, attack and react to network vulnerability and threats. Concentration on traceback techniques for attacks launched with single packets involving encrypted payloads, chaff and other obfuscation techniques. Due to the development of various tools and techniques to increase the source of network attacks, our interest will include network forensics, with the goal of identifying the specific host which launched the attack and cause denial of services (DoS). Also we will include tracing an attack that would compromise the confidentiality and integrity of information on the Intelligence Community (IC) network, which includes the NIPRNET, SIPRNET, JWICS, and IC enclaves. Deliverables will be technical reports, software, demonstrations, and results of experiments, which will provide evidence and metrics. The emergence of hybrid worm attacks utilizing multiple exploits to breach security infrastructures has forced enterprises to look into solutions that can defend their critical assets against constantly shifting threats.

After the Diagnosis: How Patients React and How to Help Them Cope

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Author: Gary McClain,Michelle Buchman

Publisher: Cengage Learning

ISBN: 1133417884

Category: Medical

Page: 384

View: 3341

AFTER THE DIAGNOSIS: HOW PATIENTS REACT AND HOW TO HELP THEM COPE, 1E is the first book to help your students understand how newly diagnosed patients react emotionally. It also shows them how to help their patients harness both emotional and rational strengths as they communicate with healthcare professionals, gather information, evaluate treatment options, make informed treatment decisions, and manage their condition. AFTER THE DIAGNOSIS: HOW PATIENTS REACT AND HOW TO HELP THEM COPE, 1E is written for healthcare professionals - nurses, physician's assistants, nursing assistants, anyone in direct contact with patients and their families - and intended for use in all health science educational programs. This book is invaluable for continuing medical education courses and for continuing education seminars for professionals working with newly-diagnosed patients and can also be used in training programs for counselors, social workers, and other mental health professionals. AFTER THE DIAGNOSIS: HOW PATIENTS REACT AND HOW TO HELP THEM COPE, 1E provides your students with practical, realistic guidelines and is richly illustrated with real-life examples and examples of dialogue, supplemented by exercises and questions. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.

How Commodity Price Curves and Inventories React to a Short-Run Scarcity Shock

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Author: Ms. Nese Erbil,Shaun K. Roache

Publisher: International Monetary Fund

ISBN: 1455273872

Category: Business & Economics

Page: 35

View: 2570

How does a commodity market adjust to a temporary scarcity shock which causes a shift in the slope of the futures price curve? We find long-run relationships between spot and futures prices, inventories and interest rates, which means that such shocks lead to an adjustment back towards a stable equilibrium. We find evidence that the adjustment is somewhat consistent with well-known theoretical models, such as Pindyck (2001); in other words, spot prices rise and then fall, while inventories are used to absorb the shock. Importantly, the pace and nature of the adjustment depends upon whether inventories were initially high or low, which introduces significant nonlinearities into the adjustment process.

Getting Started with React Native

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Author: Ethan Holmes,Tom Bray

Publisher: Packt Publishing Ltd

ISBN: 1785886231

Category: Computers

Page: 172

View: 1053

Learn to build modern native iOS and Android applications using JavaScript and the incredible power of React About This Book Learn to design and build a fully-featured application using the newest cutting-edge framework from Facebook Leverage your JavaScript skills to become a native app developer Develop custom UI components, implement smooth navigation, and access native features such as geolocation and local storage Who This Book Is For This book is for web developers who want to learn to build fast, good-looking, native mobile applications using the skills they already have. If you already have some JavaScript knowledge or are using React on the web, then you will be able to quickly get up and running with React Native for iOS and Android. What You Will Learn Set up the React Native environment on both devices and emulators Gain an in-depth understanding of how React Native works behind the scenes Write your own custom native UI components Learn the ins and outs of screen navigation Master the art of layout and styles Work with device-exclusive data such as geolocation Develop native modules in Objective-C and Java that interact with JavaScript Test and deploy your application for a production-ready environment In Detail React Native is a game-changing approach to hybrid mobile development. Web developers can leverage their existing skills to write mobile applications in JavaScript that are truly native without using cross-compilation or web views. These applications have all of the advantages of those written in Objective-C or Java, combined with the rapid development cycle that JavaScript developers are accustomed to. Web developers who want to develop native mobile applications face a high barrier to entry, because they are forced to learn platform-specific languages and frameworks. Numerous hybrid technologies have tried to simplify this process, but have failed to achieve the performance and appearance that users expect. This book will show you all the advantages of true native development that React Native has without the steep learning curve, leveraging the knowledge you already have. We do this by getting you up and running quickly with a sample application. Next, we'll introduce you to the fundamentals of creating components and explain how React Native works under the hood. Once you have established a solid foundation, you will dive headfirst into developing a real-world application from start to finish. Along the way, we will demonstrate how to create multiple screens and navigate between them,use layout and style native UI components, and access native APIs such as local storage and geolocation. Finally, we tackle the advanced topic of Native modules, which demonstrates that there are truly no limits to what you can do with React Native. Style and approach This book provides a simple and easy way to build mobile applications in JavaScript. Each topic takes you through the life cycle of creating a fully-functional native app, with detailed explanations of the entire process.

React: Up & Running

Building Web Applications

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Author: Stoyan Stefanov

Publisher: "O'Reilly Media, Inc."

ISBN: 1491931795

Category: Computers

Page: 222

View: 1087

Hit the ground running with React, the open-source technology from Facebook for building rich web applications fast. With this practical guide, Yahoo! web developer Stoyan Stefanov teaches you how to build components—React’s basic building blocks—and organize them into maintainable, large-scale apps. If you’re familiar with basic JavaScript syntax, you’re ready to get started. Once you understand how React works, you’ll build a complete custom Whinepad app that helps users rate wines and keep notes. You’ll quickly learn why some developers consider React the key to the web app development puzzle. Set up React and write your first "Hello world" web app Create and use custom React components alongside generic DOM components Build a data table component that lets you edit, sort, search, and export its contents Use the JSX syntax extension as an alternative to function calls Set up a lean, low-level build process that helps you focus on React Build a complete custom app that lets you store data on the client Use ESLint, Flow, and Jest tools to check and test your code as your app evolves Manage communication between components with Flux

React!

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Author: Cristovam Buarque

Publisher: Editora Garamond

ISBN: 8576173573

Category: Political Science

Page: 25

View: 2183

Stéphane Hessel, recently published a short pamphlet titled “Get Angry” (Indignez-vous). In it, Hessel asserts that today’s youth should assume the same indignation that his generation in its turn had against Nazism and capitalism, as well as indignation against financial capital inequality what Israel does in Palestine (it is worth remembering that Hessel is Jewish) and the indifference that has gripped the world in the face of the injustices and inefficiencies of the current financial economic system. It is a beautiful text, less than 30 pages long, and has been largely successful. I bought the 13th edition in French in Hamburg. Next to a bookshop in a café Balzac, I read the entire text and, inspired by Hessel, who I would meet some months after, wrote this “React”.