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New edition of the bestselling guide to building an effective mobile app architecture with Xamarin.Forms 4 that maximizes the overall quality of apps. Key Features Updated for Xamarin.Forms 4 Packed with real-world scenarios and solutions to help you build professional grade mobile apps with Xamarin.Forms Includes design patterns and best practice techniques that every mobile developer should know Book Description Discover how to extend and build upon the components of the most recent version of Xamarin.Forms to develop an effective, robust mobile app architecture. This new edition features Xamarin.Forms 4 updates, including CollectionView and RefreshView, new coverage of client-side validation, and updates on how to implement user authentication. Mastering Xamarin.Forms, Third Edition is one of the few Xamarin books structured around the development of a simple app from start to finish, beginning with a basic Xamarin.Forms app and going step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices. This book introduces a core separation between the app's user interface and the app's business logic by applying the MVVM pattern and data binding, and then focuses on building a layer of plugin-like services that handle platform-specific utilities such as navigation and geo-location, as well as how to loosely use these services in the app with inversion of control and dependency injection. You'll connect the app to a live web-based API and set up offline synchronization before testing the app logic through unit testing. Finally, you will learn how to add monitoring to your Xamarin.Forms projects to track crashes and analytics and gain a proactive edge on quality. What you will learn Find out how, when, and why to use architecture patterns and best practices with Xamarin.Forms Implement the Model-View-ViewModel (MVVM) pattern and data binding in Xamarin.Forms mobile apps Incorporate client-side validation in Xamarin.Forms mobile apps Extend the Xamarin.Forms navigation API with a custom ViewModel-centric navigation service Leverage the inversion of control and dependency injection patterns in Xamarin.Forms mobile apps Work with online and offline data in Xamarin.Forms mobile apps Use platform-specific APIs to build rich custom user interfaces in Xamarin.Forms mobile apps Explore how to monitor mobile app quality using Visual Studio App Center Who this book is for This book is intended for .NET developers who are familiar with Xamarin mobile application development and the open source Xamarin.Forms toolkit. If you have already started working with Xamarin.Forms and want to take your app to the next level, making it more maintainable, testable and flexible, then this book is for you.

Everyone knows that social media is free, millennials are all adept social media experts, that businesses always have to be available 24/7 and ultimately none of it really matters, as the digital space is full of fake news and online messaging is seen as inauthentic. Don't they?The use of social media as a business tool is dominated by falsehoods, fictions and fabrications. In Myths of Social Media, digital consultant Michelle Carvill and workplace psychologist Ian MacRae dismiss many of the most keenly-held misconceptions and instead, present the reality of social media best practice. Using helpful and instructive, sometimes entertaining and occasionally eye-watering examples of what you should and should not do, Myths of Social Media debunks the most commonly held myths and shows you how to use social media effectively for work and at work.

Everyone knows that social media is free, millennials are all adept social media experts, that businesses always have to be available 24/7 and ultimately none of it really matters, as the digital space is full of fake news and online messaging is seen as inauthentic. Don't they?The use of social media as a business tool is dominated by falsehoods, fictions and fabrications. In Myths of Social Media, digital consultant Michelle Carvill and workplace psychologist Ian MacRae dismiss many of the most keenly-held misconceptions and instead, present the reality of social media best practice. Using helpful and instructive, sometimes entertaining and occasionally eye-watering examples of what you should and should not do, Myths of Social Media debunks the most commonly held myths and shows you how to use social media effectively for work and at work.About the Business Myths series... The Business Myths series tackles the falsehoods that pervade the business world. From leadership and management to social media, strategy and the workplace, these accessible books overturn out-of-date assumptions, skewer stereotypes and put oft-repeated slogans to the test. Entertaining and rigorously researched, these books will equip you with the insight and no-nonsense wisdom you need to succeed.

Discover how you can leverage the reactive paradigm with RxJS in your Angular applications using some common patterns and techniques that can be implemented in real-world use casesKey FeaturesLearn how to write clean, maintainable, performant, and optimized Angular web applications using reactive patternsExplore various RxJS operators and techniques in detail to improve the testing and performance of your codeSwitch from an imperative mindset to reactive by comparing bothBook DescriptionRxJS is a fast, reliable, and compact library for handling asynchronous and event-based programs. It is a first-class citizen in Angular and enables web developers to enhance application performance, code quality, and user experience, so using reactive patterns in your Angular web development projects can improve user interaction on your apps, which will significantly improve the ROI of your applications.This book is a step-by-step guide to learning everything about RxJS and reactivity. You'll begin by understanding the importance of the reactive paradigm and the new features of RxJS 7. Next, you'll discover various reactive patterns, based on real-world use cases, for managing your application's data efficiently and implementing common features using the fewest lines of code.As you build a complete application progressively throughout the book, you'll learn how to handle your app data reactively and explore different patterns that enhance the user experience and code quality, while also improving the maintainability of Angular apps and the developer's productivity. Finally, you'll test your asynchronous streams and enhance the performance and quality of your applications by following best practices.By the end of this RxJS Angular book, you'll be able to develop Angular applications by implementing reactive patterns.What you will learnUnderstand how to use the marble diagram and read it for designing reactive applicationsWork with the latest features of RxJS 7Build a complete Angular app reactively, from requirement gathering to deploying itBecome well-versed with the concepts of streams, including transforming, combining, and composing themExplore the different testing strategies for RxJS apps, their advantages, and drawbacksUnderstand memory leak problems in web apps and techniques to avoid themDiscover multicasting in RxJS and how it can resolve complex problemsWho this book is forIf you're an Angular developer who wants to leverage RxJS for building reactive web applications, this is the book for you. Beginner-level experience with Angular and TypeScript and knowledge of functional programming concepts is assumed.

Adopt the Rust programming language by learning how to build fully functional web applications and services and address challenges relating to safety and performanceKey FeaturesBuild scalable web applications in Rust using popular frameworks such as Actix, Rocket, and WarpCreate front-end components that can be injected into multiple viewsDevelop data models in Rust to interact with the databaseBook DescriptionAre safety and high performance a big concern for you while developing web applications? While most programming languages have a safety or speed trade-off, Rust provides memory safety without using a garbage collector. This means that with its low memory footprint, you can build high-performance and secure web apps with relative ease. This book will take you through each stage of the web development process, showing you how to combine Rust and modern web development principles to build supercharged web apps. You'll start with an introduction to Rust and understand how to avoid common pitfalls when migrating from traditional dynamic programming languages. The book will show you how to structure Rust code for a project that spans multiple pages and modules. Next, you'll explore the Actix Web framework and get a basic web server up and running. As you advance, you'll learn how to process JSON requests and display data from the web app via HTML, CSS, and JavaScript. You'll also be able to persist data and create RESTful services in Rust. Later, you'll build an automated deployment process for the app on an AWS EC2 instance and Docker Hub. Finally, you'll play around with some popular web frameworks in Rust and compare them. By the end of this Rust book, you'll be able to confidently create scalable and fast web applications with Rust.What you will learnStructure scalable web apps in Rust in Rocket, Actix Web, and WarpApply data persistence for your web apps using PostgreSQLBuild login, JWT, and config modules for your web appsServe HTML, CSS, and JavaScript from the Actix Web serverBuild unit tests and functional API tests in Postman and NewmanDeploy the Rust app with NGINX and Docker onto an AWS EC2 instanceWho this book is forThis book on web programming with Rust is for web developers who have programmed in traditional languages such as Python, Ruby, JavaScript, and Java and are looking to develop high-performance web applications with Rust. Although no prior experience with Rust is necessary, a solid understanding of web development principles and basic knowledge of HTML, CSS, and JavaScript are required if you want to get the most out of this book.

Few topics are as pressing to policy makers, business leaders and the risk management community as the secure and compliant management of social media. Social Media Risk and Governance is a practical guide to the components and considerations which make up a good social media governance strategy, spanning both external communications channels such as Facebook, Twitter and LinkedIn, as well as enterprise social networks within an organization.Written by social media risk and governance expert Phil Mennie, Social Media Risk and Governance addresses the concepts which professionals in information security, marketing, compliance and risk management need to take into account in their daily practice, guiding us through policy evaluation, planning on social media, information security and fraud risks, how to respond to a crisis or to archive data and more. Featuring examples from companies such as BP, MasterCard, Netflix, PwC, Silk Road, UBS and Yelp, the book is designed to promote cross-functional working between professional users of social media, acknowledging the impact of these technologies across the business and the interaction of the various stakeholders when planning new activities to effectively harness the power of social media safely and successfully for their organization.

Tactical SEO is a practical guide to understanding the opportunities, challenges and overlooked potential that SEO can bring to any webpage or website. It challenges the plethora of technical, process driven and time sensitive best practice SEO guides, and gives readers insights into the big picture value that can be derived from understanding the underlying principles of SEO. Clear and inclusive in tone, Tactical SEO offers proven tactics to follow that are built around the core principles of optimization, and that therefore stay consistent in spite of continually evolving digital technologies. Including many real world case studies and examples, Tactical SEO gives readers a framework to cultivating their own SEO capabilities. This framework can be applied in any online business, regardless of industry or online niche, to enhance discoverability and profitability. Exploring core concepts such as the Google ethos, ripple creation and mobile marketing, Tactical SEO is the number one go-to resource to help marketing professionals and students become experts in this essential field.

A practical, no-nonsense guide to C++ Key Features Structured to let you progress and pause learning at your own pace, on your own terms Complete step-by-step exercises and open-ended activities to help build and reinforce key skills Ideal for beginners who are looking to get started with C++ for the first time Book Description You already know you want to learn C++, but which approach works best for you? Whether you want to develop a solid understanding of the core principles and techniques of C++ programming, implement standard C++ library functions and templates in your code, or learn ways to effectively structure large C++ applications, you’ll find that The C++ Workshop is heavily geared towards getting you build-ready for the real world. A step-by-step approach to learning helps you develop and reinforce key skills in a way that feels engaging and rewarding, without dragging you down into long-running lectures on dry, underlying theory. We use real examples that lead to real results. As you progress through The C++ Workshop, you’ll find key concepts broken down into convenient, individual sections. Designed to accommodate short reading sessions as well as intense, laser-focused study, you’ll find that the included step-by-step exercises and open-ended activities help you embed and reinforce what you’ve learned in a hands-on, practical context. With every chapter carefully designed to let you learn at your own pace, you get to decide how quickly you progress and how you fit learning within your schedule. With its explicit focus on demonstrating how you can be successful with C++, The C++ Workshop is ideal for those who want to get their hands dirty and learn by doing. Pick one up today, and we’ll help you get the job done. What you will learn Learn how to write, compile, and run your own C++ applications Use if/then/else statements to control the flow of your programs Use built-in data types, int, double, char, bool, and float, in your programs Apply best practices for writing safe code and avoiding common pitfalls and errors Read and review C++ code, make point changes, and write simple tests Discover the purpose and importance of template container classes Who this book is for If you want to get up to speed with the fundamentals of C++ to either work on a project or to enhance your C++ skills, this book is ideal for you. Familiarity with object-oriented programming and at least one other imperative programming language will help you to grasp the concepts explained in this book easily.

Cut through the noise and get real results with a step-by-step approach to learning Go programming Key Features Ideal for the Go beginner who is getting started for the first time A step-by-step Go tutorial with exercises and activities that help build key skills Structured to let you progress at your own pace, on your own terms Use your physical print copy to redeem free access to the online interactive edition Book Description You already know you want to learn Go, and the smart way to learn anything is to learn by doing. The Go Workshop focuses on building up your practical skills so that you can develop high-performing concurrent applications, or even create Go scripts to automate repetitive daily tasks. You'll learn from real examples that lead to real results. Throughout The Go Workshop, you'll take an engaging step-by-step approach to understanding Go. You won't have to sit through any unnecessary theory. If you're short on time you can jump into a single exercise each day, or you can spend an entire weekend learning how to test and secure your Go applications. It's your choice. Learning on your terms, you'll build up and reinforce key skills in a way that feels rewarding. Every physical print copy of The Go Workshop unlocks access to the interactive edition. With videos detailing all exercises and activities, you'll always have a guided solution. You can also benchmark yourself against assessments, track your progress, and receive content updates. You'll even earn secure credentials that you can share and verify online upon completion. It's a premium learning experience that's included with your printed copy. To redeem it, follow the instructions located at the start of your Go book. Fast-paced and direct, The Go Workshop is the ideal companion for Go beginners. You'll build and iterate on your code like a software developer, learning along the way. This process means that you'll find that your new skills stick, embedded as best practice. A solid foundation for the years ahead. What you will learn Get to grips with Go fundamentals and best practices Learn how to effectively organize your code for production environments Explore how third-party packages can help make you a better engineer Keep your development process bug-free with unit tests and benchmarks Who this book is for Our goal at Packt is to help you be successful, in whatever it is you choose to do. The Go Workshop is an ideal Go tutorial for the Go beginner who is just getting started. Pick up a Workshop today, and let Packt help you develop skills that stick with you for life.

Cut through the noise and get real results with a step-by-step approach to learning Ruby programming. Key Features Ideal for the Ruby beginner who is getting started with Ruby for the first time A complete Ruby tutorial with exercises and activities that help build key skills Structured to let you progress at your own pace, on your own terms Use your physical copy to redeem free access to the online interactive edition Book Description You already know you want to learn Ruby, and the smarter way to learn Ruby 2.X is to learn by doing. The Ruby Workshop focuses on building up your practical skills so that you can kick-start your career as a developer and rapidly prototype applications. You'll learn from real examples that lead to real results. Throughout The Ruby Workshop, you'll take an engaging step-by-step approach to understanding the Ruby language. You won't have to sit through any unnecessary theory. If you're short on time you can jump into a single exercise each day or spend an entire weekend learning about metaprogramming. It's your choice. Learning on your terms, you'll build up and reinforce key skills in a way that feels rewarding. Every physical copy of The Ruby Workshop unlocks access to the interactive edition. With videos detailing all exercises and activities, you'll always have a guided solution. You can also benchmark yourself against assessments, track progress, and receive content updates. You'll even earn a secure credential that you can share and verify online upon completion. It's a premium learning experience that's included with your printed copy. To redeem, follow the instructions located at the start of your Ruby book. Fast-paced and direct, The Ruby Workshop is the ideal companion for Ruby beginners. You'll build and iterate on your Ruby code like a software developer, learning along the way. This process means that you'll find that your new skills stick, embedded as best practice. A solid foundation for the years ahead. What you will learn Get to grips with the fundamentals of Ruby object-oriented programming Understand common Ruby patterns to help minimize and easily maintain code Explore ways to fetch, process, and output external data Discover ways to work with public APIs and create reusable RubyGems Keep your development process bug-free with various testing methods Explore how to host applications on cloud application platforms like Heroku Who this book is for Our goal at Packt is to help you be successful, in whatever it is you choose to do. The Ruby Workshop is an ideal Ruby tutorial for the Ruby beginner who is just getting started. Pick up a Workshop today, and let Packt help you develop skills that stick with you for life.