The Hitchhiker's Guide to Python takes the journeyman Pythonista to true expertise. More than any other language, Python was created with the philosophy of simplicity and parsimony. Now 25 years old, Python has become the primary or secondary language (after SQL) for many business users. With popularity comes diversity-and possibly dilution.This guide, collaboratively written by over a hundred members of the Python community, describes best practices currently used by package and application developers. Unlike other books for this audience, The Hitchhiker's Guide is light on reusable code and heavier on design philosophy, directing the reader to excellent sources that already exist.

IT-Projekte mussen durch Projektvertrage auf allen Stufen gezielt gesteuert und kontrolliert werden, um erfolgreich zu sein. Der Autor geht auf die Verantwortlichkeit des Managements fur die Projektfuhrung ein und erlautert die aktuellen Normvorgaben fur IT-Projekte aus ISO 20.000 und ITIL. Behandelt werden auch Outsourcing und ASP sowie IT-Security, gewissermassen Dauerprojekte, ebenso die Sanierung von Projekten und die Anwenderrechte bei Anbieterinsolvenz.

Ausfuhrliche Checklisten fur CIOs und Geschaftsleitungen sollen schliesslich aus deren Blickwinkel die Projektkontrolle erleichtern. In dieser Themenkombination gibt es am Buchmarkt gegenwartig keine gleichartige Darstellung."

Develop native iOS and Android apps with ease using React Native. Learn by doing through an example-driven approach, and have a substantial running app at the end of each chapter. This second edition is fully updated to include ES7 (ECMAScript 7), the latest version of React Native (including Redux), and development on Android. You will start by setting up React Native and exploring the anatomy of React Native apps. You'll then move on to Redux data flow, how it differs from flux, and how you can include it in your React Native project to solve state management differently and efficiently. You will also learn how to boost your development by including popular packages developed by the React Native community that will help you write less; do more. Finally, you'll learn to how write test cases using Jest and submit your application to the App Store. React Native challenges the status quo of native iOS and Android development with revolutionary components, asynchronous execution, unique methods for touch handling, and much more. This book reveals the the path-breaking concepts of React.js and acquaints you with the React way of thinking so you can learn to create stunning user interfaces. What You'll Learn Build stunning iOS and Android applications Understand the Redux design pattern and use it in your project Interact with iOS and android device capabilities such as addressbook, camera, GPS and more with your apps Test and launch your application to the App Store Who This Book Is For Anyone with JavaScript experience who wants to build native mobile applications but dreads the thought of programming in Objective-C or Java. Developers who have experience with JavaScript but are new or not acquainted to React Native or ReactJS.

If you need to build a scalable, fault tolerant system with requirements for high availability, discover why the Erlang/OTP platform stands out for the breadth, depth, and consistency of its features. This hands-on guide demonstrates how to use the Erlang programming language and its OTP framework of reusable libraries, tools, and design principles to develop complex commercial-grade systems that simply cannot fail. In the first part of the book, you'll learn how to design and implement process behaviors and supervision trees with Erlang/OTP, and bundle them into standalone nodes. The second part addresses reliability, scalability, and high availability in your overall system design. If you're familiar with Erlang, this book will help you understand the design choices and trade-offs necessary to keep your system running.Explore OTP's building blocks: the Erlang language, tools and libraries collection, and its abstract principles and design rules Dive into the fundamentals of OTP reusable frameworks: the Erlang process structures OTP uses for behaviors Understand how OTP behaviors support client-server structures, finite state machine patterns, event handling, and runtime/code integration Write your own behaviors and special processes Use OTP's tools, techniques, and architectures to handle deployment, monitoring, and operations

Allgegenwartige, in den Hintergrund tretende Informationstechniken konnten den Menschen in allen Lebensbereichen bei der Arbeit, beim Einkaufen, beim Reisen und zu Hause unbemerkt und mitdenkend" unterstutzen. Eine solche Entwicklung bietet nicht nur die Vision, intellektuelle und physische Begrenzungen des Menschen zu uberwinden, sondern auch viele neue Herausforderungen fur bisherige Werte und Lebensweisen. Daher drangt sich die Frage auf, wie wir angesichts dieser Moglichkeiten kunftig leben wollen und wie wir die vor uns stehenden Entwicklungen beeinflussen konnen. Das Buch beschreibt diese Entwicklungen, ihre moglichen wirtschaftlichen und gesellschaftlichen Folgen sowie ihre Auswirkungen auf das Weltbild und das Selbstbild der Menschen und es analysiert die Moglichkeiten, diese Entwicklungen gestaltend zu beeinflussen."

Have you ever felt frustrated working with someone else's code? Difficult-to-maintain source code is a big problem in software development today, leading to costly delays and defects. Be part of the solution. With this practical book, you'll learn 10 easy-to-follow guidelines for delivering Java software that's easy to maintain and adapt. These guidelines have been derived from analyzing hundreds of real-world systems. Written by consultants from the Software Improvement Group (SIG), this book provides clear and concise explanations, with advice for turning the guidelines into practice. Examples for this edition are written in Java, while our companion C# book provides workable examples in that language. Write short units of code: limit the length of methods and constructors Write simple units of code: limit the number of branch points per method Write code once, rather than risk copying buggy code Keep unit interfaces small by extracting parameters into objects Separate concerns to avoid building large classes Couple architecture components loosely Balance the number and size of top-level components in your code Keep your codebase as small as possible Automate tests for your codebase Write clean code, avoiding "code smells" that indicate deeper problems

Das Buch spielt mit einem neuen, ganzheitlichen Vorstellungsbild des Menschen, der aus drei Einheiten zusammengesetzt gedacht wird: das analytische Denken residiert in einer computerahnlichen linken Gehirnhalfte, die kreative Intuition sitzt wie ein naturbelassenes neuronales Netzwerk in der rechten. Der Mensch denkt, wohin ihn das dritte System lenkt: Ein hyperschneller Anzeichen-Identifizierer alarmiert etwa bei gefahrlichen Ereignissen die Aufmerksamkeit, unbewusst, ohne Denken. Bis auf ein paar Zeilen mathematischer Erklarung ist dieses Buch fulminante Philosophie. Wichtige Ansichten dieser Welt werden gedreht und bleiben zum Teil auf dem Kopf stehen. Die Lehren von Platon, Aristoteles, Konfuzius, Epikur, Freud & Co. erscheinen als notwendige Philosophien verschiedener Gehirnnutzungsvarianten. Das Buch ist eine scharfsinnig-bissig-humorvolle und sehr personliche Auseinandersetzung mit dem, was wir "Lebenssinn" nennen.

Utilize the power of Squarespace to create custom professional websites. Learn the principles and tools used by Squarespace's most successful web professionals to take your skills to the next level. Beginning with an overview of the Squarespace interface and template selection guidelines, this book shows you how the key web languages work together within Squarespace. You'll also see how to use the Custom CSS Editor, Code Injections, and Code Blocks to customize Squarespace templates and how the Style Editor selections affect the template's structure. Learn the accommodations that must be made in JavaScript for the customizations to work correctly in AJAX-based templates. Finally, discover what Developer Mode is, how to use it, and when to use it. The Definitive Guide to Squarespace is the only book you need to get up and running with Squarespace web development. What You'll Learn Choose the right selectors for your CSS or JavaScript customization. Understand what AJAX is and how it impacts the templates that use it. Explore the structure of Squarespace templates Who This Book Is For Web designers, developers, digital marketers, and advanced personal-use users

One of the most useful features of today's modern browsers is the ability to store data right on the user's computer or mobile device. Even as more people move toward the cloud, client-side storage can still save web developers a lot of time and money, if you do it right. This hands-on guide demonstrates several storage APIs in action. You'll learn how and when to use them, their plusses and minuses, and steps for implementing one or more of them in your application. Ideal for experienced web developers familiar with JavaScript, this book also introduces several open source libraries that make storage APIs easier to work with. Learn how different browsers support each client-side storage API Work with web (aka local) storage for simple things like lists or preferences Use IndexedDB to store nearly anything you want on the user's browser Learn how support web apps that still use the discontinued Web SQL Database API Explore Lockr, Dexie, and localForage, three libraries that simplify the use of storage APIs Build a simple working application that makes use of several storage techniques

Eingebettete Systeme begegnen uns mittlerweile uberall im Alltag: vom Mikrocontroller in der Waschmaschine bis hin zum leistungsfahigen DSP im Autoradio. Noch vor wenigen Jahren wurden diese Prozessoren aufwandig in Assembler programmiert und besassen nur in den wenigsten Fallen ein Betriebssystem. Mittlerweile aber bieten leistungsfahige und schlanke Linux-Derivate auch auf einfachen Prozessoren den Komfort der Schnittstellentreiber, des Multi-Threadings und eines Dateisystems. Die vorgestellte Hardware ist teilweise Konsumerprodukten entlehnt und somit gut erhaltlich.

Besonderer Wert wird auf die Praxistauglichkeit der Implementierungen gelegt, und so sind die Beispiele zur Hardwareanbindung via I2C, zur Kommunikation und zur Bildverarbeitung vollstandig durchimplementiert und online frei verfugbar. Das vorliegende Buch richtet sich an Berufsanfanger, Praktiker und Studenten der Informatik und der Ingenieurswissenschaften.

Weitere Informationen zum Buch sowie eine umfangreiche Quelltextsammlung sind verfugbar unter: http: //www.praxisbuch.net/embedded-linux/"

A practical book on website performance for web developers, concentrating mainly on front-end performance improvement. It covers plenty of solid theory, but is also packed with useful, real world hints and tips that you can use on your sites today. Topics covered include: User experience, design and performance Measuring and monitoring performance Setting up a page weight budget Network and server improvements Optimizing images and video Optimizing scripts and third party content Lean DOM operations The book also comes with a handy "cheat sheet" summarizing many of the key tips contained within the book.

Any programmer working in a dynamically typed language will tell you how hard it is to scale that language to more lines of code and to more engineers. That's why Facebook, Google, and Microsoft invented gradual static type layers for their dynamically typed JavaScript and Python code. TypeScript is one such type layer, and does something unique among them: it makes programming fun with its powerful, modern, static type system. With this book, programmers who understand JavaScript at an intermediate level will learn how to master the TypeScript language. You'll understand how TypeScript can help you get rid of bugs in your code, scale your code across 10x more engineers, and make programming fun again.

Der Einstieg in die Programmierung kann ganz leicht sein, das beweist Ihnen dieses Buch! Schritt fA1/4r Schritt fA1/4hrt Sie John Paul Mueller in die Grundlagen der beliebten Programmiersprache Python ein und zeigt Ihnen, wie Sie Ihren Computer dazu bringen, das zu tun, was Sie wollen. Downloaden und installieren Sie die Python-Distribution Anaconda, lernen Sie die Programmiersprache Python kennen und schreiben Sie Ihre ersten eigenen Programme. Erfahren Sie auA erdem, wie Sie Informationen managen und modifizieren, Schleifen durchlaufen, Fehler beheben und mit Listen und Strings arbeiten. Erhalten Sie zusAtzlich einen Einblick in fortgeschrittene Techniken. Mit den vielen Beispielen zum Herunterladen und Herumexperimentieren kAnnen Sie das Gelernte direkt ausprobieren, sodass Sie sich schnell in der Welt der Programmierer zuhause fA1/4hlen.

* Only in-depth guide on the market focused purely on telling J2EE developers exactly what they need to know to get their J2EE applications up and running on Oracle AS 10g. * Covers the very latest release and provides tons of tips/workarounds compiled by an expert author during numerous projects. * Compares and contrasts the Oracle AS 10g implementation to other J2EE application servers (particularly WebLogic, WebSphere and JBoss), taking advantage of the experience many readers already have with those products. This makes it an ideal book for anyone migrating to 10G from another app server.

If you're a web developer or designer ready to learn Ruby on Rails, this hands-on guide is the ideal way to get started. Rather than toss you into the middle of the framework's Model-View-Controller architecture, as many books do, Learning Rails 5 begins with the foundations of the Web you already know. You'll learn how to create something visible with Rails' view layer before diving into the more difficult inner layers: the database models and controller code. All you need to begin your Rails journey is HTML experience. Each chapter includes exercises and review questions to test your understanding as you go. Present content by building an application with a basic view and a simple controller Build forms and process their results, progressing from simple to more complex Use Rails scaffolding and REST to build effective applications quickly Connect forms to models and create code that maps directly to database structures Build applications that combine data from multiple tables Use migrations to track changes to your database over time Add common elements such as sessions, cookies, and authentication

"Drag and Drop" is a series of 12 books, mainly aimed at beginners and students. It is based on the WYSIWYG (what you see is what you get) method, so the reader can easily correlate what is written in the book with what is displayed on the computer screen. The programs can be learnt by the simple process of dragging, dropping and clicking on the command with the mouse. Each book in the series focuses on a particular software and explains it in a clear and concise manner.

With traditional software unit tests, there's never a guarantee that an application will actually function correctly in the production environment. When you add microservices, testing becomes even more tricky. Testing Java Microservices teaches readers how to write tests like unit, component, integration, container, contract, chaos, and more. Along the way, it also covers technologies like the Arquillian ecosystem, Wiremock, Mockito, AssertJ, Pact or Gatling. Finally, the book demonstrates how everything fits together into the Continuous Delivery pipeline. Key Features: * Practical hands-on guide * Writing Persistence tests * Teaches test strategies * Shows how everything fits together in the Continuous Delivery Pipeline Readers should be comfortable programming in Java. Experience with testing tools like jUnit is helpful but not required. Some experience in Java EE, Spring and Docker is also helpful. About the Technology: A microservice may consist of several, several hundred, or even several thousand of lines of code. Microservices enable programmers to isolate and scale smaller pieces of an application, rather than the entire application.

Want to add more interactivity and polish to your websites? Discover how jQuery can help you build complex scripting functionality in just a few lines of code. With "Head First jQuery," you'll quickly get up to speed on this amazing JavaScript library by learning how to navigate HTML documents while handling events, effects, callbacks, and animations. By the time you've completed the book, you'll be incorporating Ajax apps, working seamlessly with HTML and CSS, and building your own plug-ins.

If you want to learn--and understand--how to create interactive web pages, unobtrusive script, and cool animations that don't kill your browser, this book is for you.Use jQuery with DOM to overcome the limitations of HTML and CSS Learn how jQuery selectors and actions work together Write functions and wire them to interface elements Use jQuery effects to create actions on the page Make your pages come alive with animation Learn how use jQuery with the new HTML5 elements Build interactive web pages with jQuery and Ajax Create plug-ins to handle reusable functions Build forms and reports in web applications

Anyone familiar with Zynga's Farmville understands how fun and addictive real-time social games can be. This hands-on guide shows you how to design and build one of these games from start to finish, with nothing but open source tools. You'll learn how to render graphics, animate with sprites, add sound, validate scores to prevent cheating, and more, using detailed examples and code samples.

By the end of the book, you'll complete a project called Tourist Resort that combines all of the techniques you've learned. You'll also learn how to integrate your game with Facebook. If you're familiar with JavaScript, HTML5, and CSS3, you're ready to get started. Use HTML5's canvas element to build smooth animations with sprites Create an isometric grid pattern for high-performance graphics Design a GUI that works equally well on mobile devices and PCs Add sound to your game with HTML5's audio element Implement the game's path-finding function with WebWorkers Build a client data model on the server with PHP and MySQL Make your game come alive with dynamic CSS3 objects

See how XML works for business needs and RSS feeds
Create consistency on the Web, or tag your data for different purposes
Tag -- XML is it! XML tags let you share your format as well as your data, and this handy guide will show you how. You'll soon be using this markup language to create everything from Web sites to business forms, discovering schemas and DOCTYPES, wandering the Xpath, teaming up XML with Office 2003, and more.
Discover how to
* Make information portable
* Use XML with Word 2003
* Store different types of data
* Convert HTML documents to XHTML
* Add CSS to XML
* Understand and use DTDs

Save time and trouble building object-oriented, functional, and concurrent applications with Scala. The latest edition of this comprehensive cookbook is packed with more than 250 ready-to-use recipes and 1,000 code examples to help you solve the most common problems when working with Scala 3 and its popular libraries. Scala changes the way you think about programming--and that's a good thing. Whether you're working on web, big data, or distributed applications, this cookbook provides recipes based on real-world scenarios for both experienced Scala developers and programmers just learning to use this JVM language. Author Alvin Alexander includes practical solutions from his experience using Scala for component-based, highly scalable applications that support concurrency and distribution. Recipes cover: Strings, numbers, and control structures Classes, methods, objects, traits, packaging, and imports Functional programming techniques Scala's wealth of collections classes and methods Building and publishing Scala applications with sbt Actors and concurrency with Scala Future and Akka Typed Popular libraries, including Spark, Scala.js, Play Framework, and GraalVM Types, such as variance, givens, intersections, and unions Best practices, including pattern matching, modules, and functional error handling

Der enorme Kostendruck in Industrieunternehmen sowie der erkennbare Wandel der Wertschopfungsketten hin zu Wertschopfungsnetzwerken werden die Bedeutung der Beschaffung auf den Unternehmenserfolg sowie die Komplexitat der Beschaffungsaufgaben noch weiter erhohen. Diese Herausforderung kann nur durch den verstarkten Einsatz geeigneter, prozessorientierter Informationstechnologie bei der Beschaffung direkter Guter bewaltigt werden.

Dieses Buch bietet durch die Darstellung des State-of-the-Art und der Entwicklungstendenzen aus Sicht der Wissenschaft sowie namhafter IT-Anbieter-, Beratungs- und Industrieunternehmen erstmals einen ganzheitlichen Uberblick uber Strategien, Prozesse und Systeme bei der Beschaffung direkter Guter. Daraus konnen Handlungsempfehlungen fur die konkrete Ausgestaltung in den Unternehmen gewonnen werden."

Programmers used to be the only people excited about APIs, but now a growing number of companies see them as a hot new product channel. This concise guide describes the tremendous business potential of APIs, and demonstrates how you can use them to provide valuable services to clients, partners, or the public via the Internet. You'll learn all the steps necessary for building a cohesive API business strategy from experts in the trenches.

Facebook and Twitter APIs continue to be extremely successful, and many other companies find that API demand greatly exceeds website traffic. This book offers executives, business development teams, and other key players a complete roadmap for creating a viable API product. Learn about the rise of APIs and why your business might need one Understand the roles of asset owners, providers, and developers in the API value chain Build strategies for designing, implementing, and marketing your product Devise an effective process for security and user management Address legal issues, such as rights management and terms of use Manage traffic and user experience with a reliable operating model Determine the metrics you need to measure your API's success

Develop Intelligent Bots using Microsoft Bot framework (C# and Node.js), Visual Studio Enterprise & Code, MicrosoftAzure and Cognitive Services. This book shows you how to develop great Bots, publish to Azure and register with Bot portal so that customers canconnect and communicate using famous communication channels like Skype, Slack, Web and Facebook. You'll also learn how to build intelligence into Bots using Azure Cognitive Services like LUIS, OCR, Speech to Text and Web Search.Bots are the new face of user experience. Conversational User Interface provides many options to make userexperience richer, innovative and engaging with email, text, buttons or voice as the medium for communication.Modern line of business applications can be replaced or associated with Intelligent Bots that can use data/historycombined with Machine Intelligence to make user experience inclusive and exciting. With Developing Bots with Microsoft Bots Framework, you'll see just how simple Bot building can be. What You'll Learn Build Bots using MS Bot framework on Windows and Non-Windows platforms Publish your Bot to the cloud in minutes Create rich communication platforms between your application and users Apply Artificial Intelligence and Machine Learning to your applications Who This Book Is For Developers and Architects who design and build modern applications or communication platforms using MS stack or open source technologies. Business Analysts and UX Specialists interested in designing and building trendy user interfaces/platforms using Bots and Azure ML

Beginning Drupal 8 teaches you how to build, maintain, and manage Drupal 8-based web sites. The book covers what Drupal is, using Drupal when building a new web site, installing and configuring Drupal, creating and managing content, managing users, adding functionality to your web site through Drupal modules, and advanced topics on using themes, panels, and views. The book also builds practical examples of common Drupal sites, such as a company website, a community website, and a commerce website, that you can take and expand on to create your own Drupal 8 sites. By reading this book, you will understand the power of the Drupal platform, and why you should be using Drupal if you're not already. Through following the samples in the book, you will quickly build your confidence and your ability to use Drupal. Beginning Drupal 8 gives you the knowledge necessary to build, deploy, and manage web sites on Drupal 8.