1,894 Results for : javascript

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    Go Programming Language, The (eBook, PDF)
    The Go Programming Language is the authoritative resource for any programmer who wants to learn Go. It shows how to write clear and idiomatic Go to solve real-world problems. The book does not assume prior knowledge of Go nor experience with any specific language, so you'll find it accessible whether you're most comfortable with JavaScript, Ruby, Python, Java, or C++. The first chapter is a tutorial on the basic concepts of Go, introduced through programs for file I/O and text processing, simple graphics, and web clients and servers. Early chapters cover the structural elements of Go programs: syntax, control flow, data types, and the organization of a program into packages, files, and functions. The examples illustrate many packages from the standard library and show how to create new ones of your own. Later chapters explain the package mechanism in more detail, and how to build, test, and maintain projects using the go tool. The chapters on methods and interfaces introduce Go's unconventional approach to object-oriented programming, in which methods can be declared on any type and interfaces are implicitly satisfied. They explain the key principles of encapsulation, composition, and substitutability using realistic examples. Two chapters on concurrency present in-depth approaches to this increasingly important topic. The first, which covers the basic mechanisms of goroutines and channels, illustrates the style known as communicating sequential processes for which Go is renowned. The second covers more traditional aspects of concurrency with shared variables. These chapters provide a solid foundation for programmers encountering concurrency for the first time. The final two chapters explore lower-level features of Go. One covers the art of metaprogramming using reflection. The other shows how to use the unsafe package to step outside the type system for special situations, and how to use the cgo tool to create Go bindings for C libraries. The book features hundreds of interesting and practical examples of well-written Go code that cover the whole language, its most important packages, and a wide range of applications. Each chapter has exercises to test your understanding and explore extensions and alternatives. Source code is freely available for download from http://gopl.io/ and may be conveniently fetched, built, and installed using the go get command.
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    • Price: 15.95 EUR excl. shipping
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    The Definitive Guide to Jakarta Faces in Jakarta Ee 10: Using Eclipse Jakarta Ee for Enterprise Java Development
    Learn and master the new features in the new Eclipse Jakarta Faces (formerly JavaServer Faces or JSF) web framework in this definitive guide written by two of the driving forces of the Faces project and the co-creators of the OmniFaces library. Authors Bauke Scholtz and Arjan Tijms take you through real-world examples that demonstrate how these new features are used with other APIs in Jakarta EE. You'll see the new and exciting ways Jakarta Faces applications can use to communicate between a client and a server, such as using WebSockets, invoking bean methods directly from Ajax, executing client-side JavaScript when Ajax calls complete, and moreAlong the way you'll broaden your knowledge of Faces components and web APIs best practices, and learn a great deal about the internals of Faces and the design decisions that have been made when building the Faces API. For example, you'll see what artefacts are now CDI injectable, how CDI changed Faces internally, and what some of the caveats are when working with the CDI versions of a Faces artefact.Furthermore, you'll build an example application from scratch. After reading The Definitive Guide to Jakarta Faces in Jakarta EE 10, you'll be ready to build your own efficient and secure web applications. What You Will LearnLeverage the new features in Jakarta Faces in Jakarta EE in your existing applicationsIntegrate Faces and CDIUse the brand new Component Search Expression framework, which enables you to more easily locate components from your templateExtend the Component Search Expression framework with your own search operatorsWork with the different ways of mapping requests to Faces, make your application use extension-less URLs, and programmatically inspect which resources are present in your applicationMaster the best practices for web application development and see which are obsoleteWho This Book Is ForExisting JSF or Java developers who need to create a web UI. No prior knowledge of Faces is required, but the book does skew towards the more experienced developer. Concepts such as dependency injection and MVC are assumed to be known, as is a general knowledge about HTML, HTTP and other web standards.
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    • Price: 51.99 EUR excl. shipping
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    Go Programming Language, The (eBook, ePUB)
    The Go Programming Language is the authoritative resource for any programmer who wants to learn Go. It shows how to write clear and idiomatic Go to solve real-world problems. The book does not assume prior knowledge of Go nor experience with any specific language, so you'll find it accessible whether you're most comfortable with JavaScript, Ruby, Python, Java, or C++. The first chapter is a tutorial on the basic concepts of Go, introduced through programs for file I/O and text processing, simple graphics, and web clients and servers. Early chapters cover the structural elements of Go programs: syntax, control flow, data types, and the organization of a program into packages, files, and functions. The examples illustrate many packages from the standard library and show how to create new ones of your own. Later chapters explain the package mechanism in more detail, and how to build, test, and maintain projects using the go tool. The chapters on methods and interfaces introduce Go's unconventional approach to object-oriented programming, in which methods can be declared on any type and interfaces are implicitly satisfied. They explain the key principles of encapsulation, composition, and substitutability using realistic examples. Two chapters on concurrency present in-depth approaches to this increasingly important topic. The first, which covers the basic mechanisms of goroutines and channels, illustrates the style known as communicating sequential processes for which Go is renowned. The second covers more traditional aspects of concurrency with shared variables. These chapters provide a solid foundation for programmers encountering concurrency for the first time. The final two chapters explore lower-level features of Go. One covers the art of metaprogramming using reflection. The other shows how to use the unsafe package to step outside the type system for special situations, and how to use the cgo tool to create Go bindings for C libraries. The book features hundreds of interesting and practical examples of well-written Go code that cover the whole language, its most important packages, and a wide range of applications. Each chapter has exercises to test your understanding and explore extensions and alternatives. Source code is freely available for download from http://gopl.io/ and may be conveniently fetched, built, and installed using the go get command.
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    • Price: 11.95 EUR excl. shipping
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    Microsoft Blazor (eBook, PDF)
    Build web applications in C# and Microsoft .NET that run in any modern browser. This second edition is updated to work with the release version of Blazor and covers Blazor's use in creating both server-side and WebAssembly Blazor applications. Developers are able to use all their experience in .NET along with thousands of existing libraries, right in the browser. There is important new coverage in this edition on the new and improved Razor syntax, how to easily validate user input with Blazor validation, and how to build complex interacting components with Cascading Properties and Templated Components. You will learn how to build user interfaces and present data to a user for display and modification, capturing the user's changes via data binding. The book shows you how to access a rich library of .NET functionality such as a component model for building a composable user interface, including how to develop reusable components that can be used across many pages and websites. Also covered is data exchange with a server, giving you access to microservices and database services. Blazor provides a fresh take on web development by eliminating the need for you to learn different languages and frameworks for client- and server-side development. Blazor allows C# and .NET to be used on all sides, providing a robust feature set that is well suited toward scalable, enterprise-level applications. This book gets you started using this important new toolkit for web application development. What You Will LearnBuild user interfaces and display data for users to edit Capture the user's changes via data binding Transfer data back and forth between server and client Communicate with microservices and database services Develop reusable components and assemble them into bigger components Use routing to build single-page applications (SPAs) Build Blazor libraries that are reusable across applications Who This Book Is For Experienced .NET developers who want to apply their existing skills toward building professional-quality, client-side web applications that run in any browser. The book is for web developers who want to step away from JavaScript and its complexities, and instead use a proven technology (.NET) that is robust toward creating enterprise-quality applications that scale and are reliable, that provide good user experience.
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    • Price: 30.95 EUR excl. shipping
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    Sphero Mini Soccer
    Umherrollen, Spiele spielen, programmieren lernen und vieles mehr - der App-gesteuerte Roboterball Sphero Mini vereint jede Menge Spaß und ein handliches Design miteinander.In der Größe eines winzigen Ping-Pong-Balls verpackt, begeistert dieser per App gesteuerte Mini-Roboter. Der Sphero Mini lässt sich nicht nur über die verschiedenen Modi der Sphero-Mini-App bedienen, sondern erkennt dank der Face-Drive-Funktion den eigenen Gesichtsausdruck und kann somit auch anhand dessen gesteuert werden.Das Mini Soccer Kit lässt den Mini Roboter zum Fußballstar werden. Mit dem Kick Mode in der Sphero Play App können viele neue und spannende Fußball-Abenteuer erlebt werden. So kann der Ball ins Tor geschossen oder um Hindernisse herum gedribbelt werden. Hierfür enthält das Kit nicht nur einen Sphero Mini mit passendem Fußballmuster, sondern auch acht Hinderniskegel.Aber der Roboterball kann noch viel mehr! Egal ob Sphero Mini durch ein virtuelles Labyrinth gelenkt, eine Tunnellandschaft durchquert oder eine Mauer aus Ziegelsteinen auf seinem Weg zerstört werden muss - die Auswahl der in der App verfügbaren Spiele wird stets aktualisiert und stellt den Spieler immer wieder vor neue Herausforderungen.Steuerung: Verschiedene Modi in der Sphero-Mini-App: Joystick, Kipplenkung, Schleuderbewegung oder Face DriveFace Drive: Lässt Sphero Mini Gesichtsausdrücke erkennen und ihn anhand dieser steuernSpielen: Über die App kann Sphero Mini als Videospiel-Controller benutzt werden; Spiele und zusätzliche Updates sind über die App verfügbarProgrammieren: Nach dem Download der Sphero-Edu-App lässt sich Sphero Mini mithilfe der Programmierbefehle von JavaScript steuernSphero Mini Roboter Ball im Fußballdesign zum Spielen und ProgrammierenSteuerung über verschiedene Modi in der Sphero-Mini-App: Joystick, Kipplenkung, Schleuderbewegung oder Face DriveFace Drive: Lässt Sphero Mini Gesichtsausdrücke erkennen und ihn anhand dieser steuernSpielen: Über die App kann Sphero Mini als Videospiel-Controller benutzt werden; Spiele und zusätzliche Updates sind über die App verfügbarSphero Edu App kostenlos erhältlich im App Store, Google Play, Chrome Store und Kindle StoreKostenlose Sphero Play App, erhältlich im App Store und Google PlayLenkkreisel und BeschleunigungsmesserLED-LeuchtenKopplung via Bluetooth (bis 30 m Reichweite), kompatibel ab iOS 10, Android 5 oder neuerMicro-USB-LadeanschlussMaße: Höhe: 42 mm, Durchmesser: 42 mmGewicht: 46 gHöchstgeschwindigkeit: 1m/sEmpfohlen für Kinder ab 8 JahrenIm Lieferumfang enthalte: Ein Sphero Mini Roboter im Fußballdesign, acht Hinderniskegel, ein Micro-USB-KabelACHTUNG!Nicht für Kinder unter 3 Jahren geeignet. Erstickungsgefahr wegen verschluckbarer Kleinteile.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
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    • Price: 69.99 EUR excl. shipping
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    Vue.js 3 Cookbook
    Explore the new features of Vue.js 3 and discover best practices for building fault-tolerant and professional frontend web applications Key Features Migrate your apps from Vue.js 2 to Vue.js 3 with the help of practical recipes Explore the latest Vue.js 3 features such as reactivity API, composition API, and TypeScript support Extend the capabilities and performance of Vue.js apps with Quasar, Vuetify, and Nuxt.js frameworks Book Description Vue.js is a progressive web framework for building professional user interfaces for your web applications. With Vue.js 3, the frontend framework is reinforced with architectural enhancements, new base languages, new render processes, and separated core components. The book starts with recipes for implementing Vue.js 3's new features in your web development projects and migrating your existing Vue.js apps to the latest version. You will get up and running with TypeScript with Vue.js and find succinct solutions to common challenges and pitfalls faced in implementing components, derivatives, and animation, through to building plugins, adding state management, routing, and developing complete single-page applications (SPAs). As you advance, you'll discover recipes to help you integrate Vue.js apps with Nuxt.js in order to add server-side rendering capabilities to your SPAs. You'll then learn about the Vue.js ecosystem by exploring modern frameworks such as Quasar, Nuxt.js, Vuex, and Vuetify in your web projects. Finally, the book provides you with solutions for packaging and deploying your Vue.js apps. By the end of this Vue.js book, you'll be able to identify and solve challenges faced in building Vue.js applications and be able to adopt the Vue.js framework for frontend web projects of any scale. What you will learn Design and develop large-scale web applications using Vue.js 3's latest features Create impressive UI layouts and pages using Vuetify, Buefy, and Ant Design Extend your Vue.js applications with dynamic form and custom rules validation Add state management, routing, and navigation to your web apps Extend Vue.js apps to the server-side with Nuxt.js Discover effective techniques to deploy your web applications with Netlify Develop web applications, mobile applications, and desktop applications with a single code base using the Quasar framework Who this book is for The book is for both new and experienced Vue.js developers looking to overcome challenges in building dynamic web applications with Vue 3. Knowledge of JavaScript and a basic understanding of Vue.js will help you to make the most of this book.
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    • Price: 51.99 EUR excl. shipping
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    BDD in Action (eBook, ePUB)
    Summary BDD in Action teaches you the Behavior-Driven Development model and shows you how to integrate it into your existing development process. First you'll learn how to apply BDD to requirements analysis to define features that focus your development efforts on underlying business goals. Then, you'll discover how to automate acceptance criteria and use tests to guide and report on the development process. Along the way, you'll apply BDD principles at the coding level to write more maintainable and better documented code. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology You can't write good software if you don't understand what it's supposed to do. Behavior-Driven Development (BDD) encourages teams to use conversation and concrete examples to build up a shared understanding of how an application should work and which features really matter. With an emerging body of best practices and sophisticated new tools that assist in requirement analysis and test automation, BDD has become a hot, mainstream practice. About the Book BDD in Action teaches you BDD principles and practices and shows you how to integrate them into your existing development process, no matter what language you use. First, you'll apply BDD to requirements analysis so you can focus your development efforts on underlying business goals. Then, you'll discover how to automate acceptance criteria and use tests to guide and report on the development process. Along the way, you'll apply BDD principles at the coding level to write more maintainable and better documented code. No prior experience with BDD is required. What's Inside BDD theory and practiceHow BDD will affect your teamBDD for acceptance, integration, and unit testingExamples in Java, .NET, JavaScript, and moreReporting and living documentation About the Author John Ferguson Smart is a specialist in BDD, automated testing, and software lifecycle development optimization. Table of Contents PART 1: FIRST STEPSBuilding software that makes a differenceBDD—the whirlwind tourPART 2: WHAT DO I WANT? DEFINING REQUIREMENTS USING BDDUnderstanding the business goals: Feature Injection and related techniquesDefining and illustrating featuresFrom examples to executable specificationsAutomating the scenariosPART 3: HOW DO I BUILD IT? CODING THE BDD WAYFrom executable specifications to rock-solid automated acceptance testsAutomating acceptance criteria for the UI layerAutomating acceptance criteria for non-UI requirementsBDD and unit testingPART 4: TAKING BDD FURTHERLiving Documentation: reporting and project managementBDD in the build process
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    • Price: 37.58 EUR excl. shipping
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    The Art of Immutable Architecture
    This book teaches you how to evaluate a distributed system from the perspective of immutable objects. You will understand the problems in existing designs, know how to make small modifications to correct those problems, and learn to apply the principles of immutable architecture to your tools.Most software components focus on the state of objects. They store the current state of a row in a relational database. They track changes to state over time, making several basic assumptions: there is a single latest version of each object, the state of an object changes sequentially, and a system of record exists.This is a challenge when it comes to building distributed systems. Whether dealing with autonomous microservices or disconnected mobile apps, many of the problems we try to solve come down to synchronizing an ever-changing state between isolated components. Distributed systems would be a lot easier to build if objects could not change.After reading The Art of Immutable Architecture, you will come away with an understanding of the benefits of using immutable objects in your own distributed systems. You will learn a set of rules for identifying and exchanging immutable objects, and see a collection of useful theorems that emerges and ensures that the distributed systems we build are eventually consistent. Using patterns, you will find where the truth converges, see how changes are associative, rather than sequential, and come to feel comfortable understanding that there is no longer a single source of truth. Practical hands-on examples reinforce how to build software using the described patterns, techniques, and tools. By the end, you will possess the language and resources needed to analyze and construct distributed systems with confidence.The assumptions of the past were sufficient for building single-user, single-computer systems. But as we expand to multiple devices, shared experiences, and cloud computing, they work against us. It is time for a new set of assumptions. Start with immutable objects, and build better distributed systems.What You Will LearnEvaluate a distributed system from the perspective of immutable objects Recognize the problems in existing designs, and make small modifications to correct them Start a new system from scratch, applying patterns Apply the principles of immutable architecture to your tools, including SQL databases, message queues, and the network protocols that you already use Discover new tools that natively apply these principles Who This Book Is ForSoftware architects and senior developers. It contains examples in SQL and languages such as JavaScript and C#. Past experience with distributed computing, data modeling, or business analysis is helpful.
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    • Price: 35.99 EUR excl. shipping
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    Interactive Dashboards and Data Apps with Plotly and Dash
    Learn how to build web-based and mobile-friendly analytic apps and interactive dashboards with Python Key Features:Develop data apps and dashboards without any knowledge of JavaScript Map different types of data such as integers, floats, and dates to bar charts, scatter plots, and more Create controls and visual elements with multiple inputs and outputs and add functionality to the app as per your requirements Book Description: With Plotly's Dash framework, it is now easier than ever for Python programmers to develop complete data apps and interactive dashboards. Dash apps can be used by a non-technical audience, and this will make data analysis accessible to a much wider group of people. This book will help you to explore the functionalities of Dash for visualizing data in different ways and getting the most out of it. The book starts with an overview of the Dash ecosystem, its main packages, and the third-party packages crucial for structuring and building different parts of your apps. You'll learn how to create a basic Dash app and add different features to it. Next, you'll integrate controls such as dropdowns, checkboxes, sliders, date pickers, and more in the app and then link them to charts and other outputs. Depending on the data you are visualizing, you'll also add several types of charts, including scatter plots, line plots, bar charts, histograms, and maps, as well as explore the options available for customizing them. By the end of this book, you'll have developed the skills you need to create and deploy an interactive dashboard, handle complexities and code refactoring, and understand the process of improving your application. What You Will Learn:Find out how to run a fully interactive and easy-to-use app Convert your charts to various formats including images and HTML files Use Plotly Express and the grammar of graphics for easily mapping data to various visual attributes Create different chart types, such as bar charts, scatter plots, histograms, maps, and more Expand your app by creating dynamic pages that generate content based on URLs Implement new callbacks to manage charts based on URLs and vice versa Who this book is for: This Plotly Dash book is for data professionals and data analysts who want to gain a better understanding of their data with the help of different visualizations and dashboards. Basic to intermediate-level knowledge of the Python programming language will help you to grasp the concepts covered in this book more effectively.
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    • Price: 45.99 EUR excl. shipping
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    Vue.js 3 By Example
    Kick-start your Vue.js development career by learning the fundamentals of Vue 3 and its integration with modern web technologies such as Electron, GraphQL, Ionic, and Laravel Key Features:Download complete source code for all Vue.js projects built throughout the book Discover steps to build production-ready Vue.js apps across web, mobile, and desktop Build a compelling portfolio of web apps, including shopping cart system, booking app, slider puzzle game, real-time chat app, and more Book Description: With its huge ecosystem and wide adoption, Vue is one of the leading frameworks thanks to its ease of use when developing applications. However, it can get challenging for aspiring Vue.js developers to make sense of the ecosystem and build meaningful applications. This book will help you understand how you can leverage Vue effectively to develop impressive apps quickly using its latest version - Vue 3.0. The book takes an example-based approach to help you get to grips with the basics of Vue 3 and create a simple application by exploring features such as components and directives. You'll then enhance your app building skills by learning how to test the app with Jest and Vue Test Utils. As you advance, you'll understand how to write non-web apps with Vue 3, create cross-platform desktop apps with the Electron plugin, and build a multi-purpose mobile app with Vue and Ionic. You'll also be able to develop web apps with Vue 3 that interact well with GraphQL APIs. Finally, you'll build a chat app that performs real-time communication using Vue 3 and Laravel. By the end of this Vue.js book, you'll have developed the skills you need to build real-world apps using Vue 3 by working through a range of projects. What You Will Learn:Get to grips with Vue architecture, components, props, directives, mixins, and other advanced features Understand the Vue 3 template system and use directives Use third-party libraries such as Vue Router for routing and Vuex for state management Create GraphQL APIs to power your Vue 3 web apps Build cross-platform Vue 3 apps with Electron and Ionic Make your Vue 3 apps more captivating with PrimeVue Build real-time communication apps with Vue 3 as the frontend and Laravel Who this book is for: This book is for web developers who want to learn frontend web development with Vue 3 and use it to create professional applications. You'll also find this book useful if you're looking to create full-stack web apps with Vue.js 3.0 as the frontend. Knowledge of JavaScript programming is required to get the most out of this book.
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    • Price: 45.99 EUR excl. shipping

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