Techniki programowania
Mani Tadayon
This book will teach you how to use RSpec to write high-value tests for real-world code. We start with the key concepts of the unit and testability, followed by hands-on exploration of key features. From the beginning, we learn how to integrate tests into the overall development process to help create high-quality code, avoiding the dangers of testing for its own sake.We build up sample applications and their corresponding tests step by step, from simple beginnings to more sophisticated versions that include databases and external web services. We devote three chapters to web applications with rich JavaScript user interfaces, building one from the ground up using behavior-driven development (BDD) and test-driven development (TDD).The code examples are detailed enough to be realistic while simple enough to be easily understood. Testing concepts, development methodologies, and engineering tradeoffs are discussed in detail as they arise. This approach is designed to foster the reader’s ability to make well-informed decisions on their own.
Andrea Cirillo
The requirement of handling complex datasets, performing unprecedented statistical analysis, and providing real-time visualizations to businesses has concerned statisticians and analysts across the globe. RStudio is a useful and powerful tool for statistical analysis that harnesses the power of R for computational statistics, visualization, and data science, in an integrated development environment.This book is a collection of recipes that will help you learn and understand RStudio features so that you can effectively perform statistical analysis and reporting, code editing, and R development. The first few chapters will teach you how to set up your own data analysis project in RStudio, acquire data from different data sources, and manipulate and clean data for analysis and visualization purposes. You'll get hands-on with various data visualization methods using ggplot2, and you will create interactive and multidimensional visualizations with D3.js. Additional recipes will help you optimize your code; implement various statistical models to manage large datasets; perform text analysis and predictive analysis; and master time series analysis, machine learning, forecasting; and so on. In the final few chapters, you'll learn how to create reports from your analytical application with the full range of static and dynamic reporting tools that are available in RStudio so that you can effectively communicate results and even transform them into interactive web applications.
Abhishek Nalwaya, Akshat Paul
RubyMotion is a revolutionary toolchain for iOS app development. With RubyMotion, you can quickly develop and test native iOS apps for the iPhone and iPad, combining the expressiveness and simplicity of Ruby with the power of the iOS SDK.RubyMotion iOS Development Essentials is a hands-on guide for developing iOS apps using RubyMotion. With RubyMotion, you can eliminate the complexity and confusion associated with the development of iOS applications using Objective-C.We'll begin from scratch. Starting by installing RubyMotion, we'll build ourselves up to developing an app that uses the various device capabilities iOS has to offer. What's more, we'll even learn how to launch your app on the App Store!We'll also learn to use iOS SDK classes to create application views. Discover how to use the camera, geolocation, gestures, and other device capabilities to create engaging, interactive apps. We'll develop stunning user interfaces faster with the XCode interface builder and make web apps by using WebView. We'll then augment applications with RubyMotion gems, doing more by writing less code and learn how to write test cases for RubyMotion projects. Finally, we'll understand the app submission process to push your app to Apple's App StoreWith RubyMotion iOS Development Essentials, we will learn how to create iOS apps with ease. At the end of each chapter we will have a tangible and running app, which utilizes the concepts we have learnt in that chapter.
Akhil Sharma
Before Rust, blockchain developers didn’t have a systems programming language that was type-safe, fast, and, at the same time, had stable and easy memory management. Rust proved to be a boon for developers and works as the perfect solution for not only blockchain and protocol development but also dApp development.Rust for Blockchain Application Development focuses on demonstrating solutions that can help blockchain developers productize decentralized applications using Rust, which is a complex language with a steep learning curve.This book starts with basic Rust language concepts and then builds on these concepts to enable you to develop your own blockchain from scratch. As you progress, you’ll learn how to build dApps on popular chains like Solana and NEAR. You’ll also be guided through creating Ethereum dApps using Foundry (Rust). Finally, you’ll develop a custom blockchain using Substrate by Parity (Polkadot). The book provides a complete 360-degree view of Rust in the blockchain ecosystem.By the end of this Rust book, you’ll have a thorough understanding of how to apply your Rust knowledge to building dApps and blockchains from scratch.
Rust for C++ Developers. Leverage your C++ expertise to write safer and faster systems code in Rust
Dan Olson
If you're a C++ programmer curious about the rising popularity of Rust, this book will guide you through the transition with clarity and purpose. Written by a veteran C++ developer who embraced Rust to improve software quality and maintainability, this hands-on guide shows you how to apply your existing knowledge to build efficient and safe systems with Rust.The first half of the book deep dives into Rust’s history, safety guarantees, and development tooling. From there, the book compares Rust and C++ side by side, covering syntax, SIMD instructions, file I/O, object orientation, and data structures. With each chapter, you’ll gain a practical understanding of Rust’s unique approaches—like ownership and borrowing—and how they solve long-standing challenges in C++.Later half of the book tackles performance optimization, multithreading, macros, and foreign function interfaces, culminating in a complete project where you reimplement a C++ program in Rust. By focusing on real-world code and familiar concepts, this book makes Rust accessible and actionable for experienced C++ developers.By the end of Rust for C++ Developers, you’ll be confident in your ability to read, write, and maintain production-grade Rust code, and you’ll have a clear roadmap for integrating Rust into your future projects.
Rheinwerk Publishing, Inc, Nouman Azam
This book begins by introducing the core concepts of Rust programming, starting with installation, writing basic programs, and understanding variables, data types, and functions. It covers Rust’s unique ownership system, which is central to the language, explaining how borrowing and memory management work to ensure safety and efficiency. Basic control flow concepts like conditionals and loops are also explored, providing a solid foundation for beginners.As the book progresses, more advanced topics are introduced, such as structs, enums, and collections, which allow for the creation of flexible and efficient data structures. Rust’s powerful memory management features, including smart pointers, lifetimes, and borrowing, are discussed in detail. Readers will also dive into functional programming aspects like closures, iterators, and function pointers, which enhance the flexibility and expressiveness of Rust code.The final chapters focus on concurrency and advanced topics such as macros and web programming. Readers will learn how to handle multithreading in Rust, work with asynchronous programming, and build web servers. Practical problems at the end help reinforce the concepts learned, providing readers with the tools to solve real-world challenges efficiently using Rust.
Nikola Mitrović , Santosh Yadav
Building modern web applications that are responsive and resilient is essential in this rapidly evolving digital world. Imagine effortlessly managing complex data streams and creating seamless user experiences—this book helps you do just that by adopting RxJS to boost your development skills and transform your approach to reactive programming.Written by a seasoned software engineer and consultant with a decade of industry experience, this book equips you to harness the power of RxJS techniques, patterns, and operators tailored for real-world scenarios. Each chapter is filled with practical recipes designed to tackle a variety of challenges, from managing side effects and ensuring error resiliency in client applications to developing real-time chat applications and event-driven microservices. You’ll learn how to integrate RxJS with popular frameworks, such as Angular and NestJS, gaining insights into modern web development practices that enhance performance and interactivity.By the end of this book, you’ll have mastered reactive programming principles, the RxJS library, and working with Observables, while crafting code that reacts to changes in data and events in a declarative and asynchronous way.
Rob Cowell, Lars Malmqvist
Rob Cowell is a Salesforce DevOps Advocate with extensive experience as a Salesforce Developer and Architect, guiding best practices for Salesforce DevOps. Lars Malmqvist, a 32x certified Salesforce CTA, has 15 years of experience building advanced Salesforce solutions and is the author of two books, Architecting AI Solutions on Salesforce and Salesforce Anti-Patterns. As the Salesforce Platform evolves, architects face increasing demand for advanced solutions. This book serves as your definitive guide to mastering effective DevOps practices crucial for successful Salesforce projects. Beginning with cultivating a DevOps mindset focused on collaboration and communication, it emphasizes governance, visibility, and accountability. You'll delve into tools and techniques, leveraging the robust capabilities of SFDX to craft your strategy efficiently. This book stands out for its practical approach to Salesforce packaging and CI/CD stack creation, guiding you to build a seamless automated change delivery system with freely available software. It addresses critical operational concerns such as ticket management, backups, change monitoring, and data seeding. In the final chapters, you'll discover third-party solutions to expedite your Salesforce DevOps journey, empowering you to deliver sophisticated and efficient projects.