Techniki programowania
Foat Akhmadeev
This book will give you an insight into controlling your applications with gestures and head motion and readying them for the web. Packed with real-world tasks, it begins with a walkthrough of the basic concepts of Computer Vision that the JavaScript world offers us, and you’ll implement various powerful algorithms in your own online application. Then, we move on to a comprehensive analysis of JavaScript functions and their applications. Furthermore, the book will show you how to implement filters and image segmentation, and use tracking.js and jsfeat libraries to convert your browser into Photoshop. Subjects such as object and custom detection, feature extraction, and object matching are covered to help you find an object in a photo. You will see how a complex object such as a face can be recognized by a browser as you move toward the end of the book. Finally, you will focus on algorithms to create a human interface. By the end of this book, you will be familiarized with the application of complex Computer Vision algorithms to develop your own applications, without spending much time learning sophisticated theory.
Denis Rothman
Generative AI is powerful, yet often unpredictable. This guide shows you how to turn that unpredictability into reliability by thinking beyond prompts and approaching AI like an architect. At its core is the Context Engine, a glass-box, multi-agent system you’ll learn to design and apply across real-world scenarios.Written by an AI guru and author of various cutting-edge AI books, this book takes you on a hands-on journey from the foundations of context design to building a fully operational Context Engine. Instead of relying on brittle prompts that give only simple instructions, you’ll begin with semantic blueprints that map goals and roles with precision, then orchestrate specialized agents using the Model Context Protocol. As the engine evolves, you’ll integrate memory and high-fidelity retrieval with citations, implement safeguards against data poisoning and prompt injection, and enforce moderation to keep outputs aligned with policy. You’ll also harden the system into a resilient architecture, then see it pivot across domains, from legal compliance to strategic marketing, proving its domain independence.By the end of this book, you’ll be equipped with the skills to engineer an adaptable, verifiable architecture you can repurpose across domains and deploy with confidence.*Email sign-up and proof of purchase required
Tim Juravich
CouchDB is a NoSQL database which is making waves in the development world. It's the tool of choice for many PHP developers so they need to understand the robust features of CouchDB and the tools that are available to them.CouchDB and PHP Web Development Beginner's Guide will teach you the basics and fundamentals of using CouchDB within a project. You will learn how to build an application from beginning to end, learning the difference between the quick wayù to do things, and the right wayù by looking through a variety of code examples and real world scenarios. You will start with a walkthrough of setting up a sound development environment and then learn to create a variety of documents manually and programmatically. You will also learn how to manage their source control with Git and keep track of their progress. With each new concept, such as adding users and posts to your application, the author will take you through code step-by-step and explain how to use CouchDB's robust features. Finally, you will learn how to easily deploy your application and how to use simple replication to scale your application.
Filip Lundgren, Ruan Pearce-Authers
CryENGINE is a complete 3D game development solution that can run on multiple platforms. It is orientated around giving intuitive tools to the developer. A variety of interactive video games can be created using CryENGINE. CryENGINE is one of the most beginner-friendly engines out there to learn. If you are interested in diving into the various systems and understanding their workings in a way that is easily understood, then this book is for you.This book provides you with the knowledge to tame the powerful but hard-to-master CryENGINE. CryENGINE Game Programming with C++, C#, and Lua dives into the various systems and explains their workings in a way that can be easily understood by developers of all levels. It provides knowledge on the engine along with step-by-step exercises and detailed information on the backend implementation of the subsystems, giving you an excellent foundation to build upon when developing your own CryENGINE games.Written by developers with years of CryENGINE experience, this book breaks down the common confusion that encompasses the CryENGINE engine code, guiding you through a series of chapters aimed towards giving you the ability to create your own games in a rapid yet productive fashion. You will learn everything you need to know in order to create your own CryENGINE-powered games as well as detailed information on how to use the engine to your advantage. By teaching systems such as audio, particle effects, rendering, AI, networking, and more, we'll be exposing the most inner parts of CryENGINE that commonly confuse programmers. If you want to quickly gain the knowledge required to create your own CryENGINE game title, then this book is for you.
Czysta architektura. Struktura i design oprogramowania. Przewodnik dla profesjonalistów
Robert C. Martin
Pierwsze linie kodu powstawały pół wieku temu. Komputery, na które tworzono te programy, w bardzo niewielkim stopniu przypominały współczesne maszyny. Niezależnie od upływu lat, postępu technologii i powstawania wymyślnych narzędzi, języków programowania czy frameworków pewne zasady tworzenia kodu pozostają niezmienne. Są takie same jak w czasie, gdy Alan Turing pisał pierwszy kod maszynowy w 1946 roku. Respektowanie tych zasad to warunek, że uzyska się oprogramowanie o czystej architekturze, czyli poprawne strukturalnie, łatwe w utrzymaniu i rozwijaniu, a przede wszystkim działające zgodnie z oczekiwaniami. W tej książce w sposób jasny i bardzo interesujący przedstawiono uniwersalne zasady architektury oprogramowania wraz z szeregiem wskazówek dotyczących stosowania tych reguł w praktyce. Wyczerpująco zaprezentowano tu dostępne rozwiązania i wyjaśniono, dlaczego są one tak istotne dla sukcesu przedsięwzięcia. Publikacja jest wypełniona bardzo praktycznymi rozwiązaniami problemów, z którymi musi się mierzyć wielu programistów. Szczególnie cenne są uwagi dotyczące zapobiegania częstemu problemowi, jakim jest stopniowa utrata jakości kodu w miarę postępu projektu. Ta książka obowiązkowo powinna się znaleźć w podręcznej biblioteczce każdego architekta oprogramowania, analityka systemowego, projektanta i menedżera! Z książki dowiesz się: Do czego muszą dążyć architekci oprogramowania i w jaki sposób mogą osiągać te cele Jak brzmią najważniejsze zasady projektowania oprogramowania związane z adresowaniem funkcji, separacją komponentów i zarządzaniem danymi W jaki sposób paradygmaty oprogramowania wzmagają dyscyplinę pracy Co podczas tworzenia oprogramowania jest więcej, a co jest mniej ważne W jaki sposób implementować optymalne struktury dla sieci WWW, baz danych, konsoli i aplikacji osadzonych Czysta architektura - doskonały kod!
Czysty kod. Podręcznik dobrego programisty
Robert C. Martin
Poznaj najlepsze metody tworzenia doskonałego kodu Jak pisać dobry kod, a zły przekształcić w dobry? Jak formatować kod, aby osiągnąć maksymalną czytelność? Jak implementować pełną obsługę błędów bez zaśmiecania logiki kodu? O tym, ile problemów sprawia niedbale napisany kod, wie każdy programista. Nie wszyscy jednak wiedzą, jak napisać ten świetny, "czysty" kod i czym właściwie powinien się on charakteryzować. Co więcej - jak odróżnić dobry kod od złego? Odpowiedź na te pytania oraz sposoby tworzenia czystego, czytelnego kodu znajdziesz właśnie w tej książce. Podręcznik jest obowiązkową pozycją dla każdego, kto chce poznać techniki rzetelnego i efektywnego programowania. W książce Czysty kod. Podręcznik dobrego programisty szczegółowo omówione zostały zasady, wzorce i najlepsze praktyki pisania czystego kodu. Podręcznik zawiera także kilka analiz przypadków o coraz większej złożoności, z których każda jest doskonałym ćwiczeniem porządkowania zanieczyszczonego bądź nieudanego kodu. Z tego podręcznika dowiesz się m.in., jak tworzyć dobre nazwy, obiekty i funkcje, a także jak tworzyć testy jednostkowe i korzystać z programowania sterowanego testami. Nauczysz się przekształcać kod zawierający problemy w taki, który jest solidny i efektywny. Nazwy klas i metod Funkcje i listy argumentów Rozdzielanie poleceń i zapytań Stosowanie wyjątków Komentarze Formatowanie Obiekty i struktury danych Obsługa błędów Testy jednostkowe Klasy i systemy Współbieżność Oczyszczanie kodu Niech stworzony przez Ciebie kod imponuje czystością!
Kai Nacke
D is a programming language with C-like syntax and static typing. The vibe.d framework builds on powerful D concepts like template meta-programming and compile-time function execution to provide an easy-to-use environment for web applications. The combination of a feature-rich web programming framework with a language compiling to native code solves two common issues in web development today: it accelerates your development and it results in fast, native web applications. Learning the vibe.d framework before you start your application will help you to choose the right features to reach your goal.This book guides you through all aspects of web development with D and the vibe.d framework.Covering the popular operating systems today, this guide starts with the setup of your development system. From the first Hello World-style application you will move on to building static web pages with templates. The concise treatment of web forms will give you all the details about form handling and web security. Using the abstractions of the web framework you will learn how to easily validate user input. Next, you will add database access to your application, providing persistent storage for your data. Building on this foundation, you will expose your component and integrate other components via REST. Learning about the internals of vibe.d you will be able to use low-level techniques such as raw TCP access. The vibe.d concepts can also be used for GUI clients, which is the next topic that you will learn. vibe.d is supported by an active community, which adds new functionality. This comprehensive guide concludes with an overview of the most useful vibe.d extensions and where to find them. It also shows you how to integrate these extensions in your application.The concepts are always illustrated with source code, giving you an insight into how to apply them in your application.
Aendrew Rininsland , Michael Heydt, Pablo NAVARRO...
D3 has emerged as one of the leading platforms to develop beautiful, interactive visualizations over the web. We begin the course by setting up a strong foundation, then build on this foundation as we take you through the entire world of reimagining data using interactive, animated visualizations created in D3.js. In the first module, we cover the various features of D3.js to build a wide range of visualizations. We also focus on the entire process of representing data through visualizations. By the end of this module, you will be ready to use D3 to transform any data into a more engaging and sophisticated visualization.In the next module, you will learn to master the creation of graphical elements from data. Using practical examples provided, you will quickly get to grips with the features of D3.js and use this learning to create your own spectacular data visualizations with D3.js.Over the last leg of this course, you will get acquainted with how to integrate D3 with mapping libraries to provide reverse geocoding and interactive maps among many other advanced features of D3. This module culminates by showing you how to create enterprise-level dashboards to display real-time data.This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products:? Learning D3.js Data Visualization, Second Edition by Andrew H. Rininsland? D3.js By Example by Michael Heydt? Mastering D3.js by Pablo Navarro Castillo
Dart: Scalable Application Development. Provides a solid foundation of libraries and tools
David Mitchell, Sergey Akopkokhyants, Ivo Balbaert
Designed to create next generation apps, Google’s Dart offers a much more robust framework and also supersedes JavaScript in several aspects. Familiar yet innovative, compact yet scalable, it blows away the accumulated JavaScript legacy limitations. Dart was designed for great tool-ability and developer productivity, allowing you to create better application faster than before. Google chose it for their billion dollar advertising business and you have its power for your projects too.The first module will introduce you the Dart language starting from its conception to its current form, and where it headed is through engaging substantial practical projects. You will be taken through building typical applications and exploring the exciting new technologies of HTML5.The second module will show you how to add internalization support to your web applications and how i18n and i10n access can be embedded into your code to design applications that can be localized easily. You will be shown how to organize client-to-server communication and how different HTML5 features can be used in Dart. Finally, this module will show you how you can store data locally, break the storage limit, and prevent security issues in your web application.The third module is a pragmatic guide that will increase your expertise in writing all kinds of applications, including web apps, scripts, and server-side apps. It provides rich insights on how to extend your Dart programming skills. Altogether, this course provides you the power to create powerful applications with Dart, without worrying about your knowledge leading to you having to make compromises to the end product!This Learning Path has been curated from three Packt products:Dart By Example By Davy MitchellMastering Dart By Sergey AkopkokhyantsDart Cookbook By Ivo Balbaert
Aleksejs Plotnikovs
Microsoft pioneered data innovation and investment ahead of many in the industry, setting a remarkable standard for data maturity. Written by a data leader with over 15 years of experience following Microsoft’s data journey, this book delves into every crucial aspect of this journey, including change management, aligning with business needs, enhancing data value, and cultivating a data-driven culture.This book emphasizes that success in a data-driven enterprise goes beyond relying solely on modern technology and highlights the importance of prioritizing genuine business needs to propel necessary modernizations through change management practices. You’ll see how data-driven innovation does not solely reside within central IT engineering teams but also among the data's business owners who rely on data daily for their operational needs. This guide empower these professionals with clean, easily discoverable, and business-ready data, marking a significant breakthrough in how data is perceived and utilized throughout an enterprise. You’ll also discover advanced techniques to nurture the value of data as unique intellectual property, and differentiate your organization with the power of data.Its storytelling approach and summary of essential insights at the end of each chapter make this book invaluable for business and data leaders to advocate for crucial data investments.
Data Wrangling with SQL. A hands-on guide to manipulating, wrangling, and engineering data using SQL
Raghav Kandarpa, Shivangi Saxena
The amount of data generated continues to grow rapidly, making it increasingly important for businesses to be able to wrangle this data and understand it quickly and efficiently. Although data wrangling can be challenging, with the right tools and techniques you can efficiently handle enormous amounts of unstructured data.The book starts by introducing you to the basics of SQL, focusing on the core principles and techniques of data wrangling. You’ll then explore advanced SQL concepts like aggregate functions, window functions, CTEs, and subqueries that are very popular in the business world. The next set of chapters will walk you through different functions within SQL query that cause delays in data transformation and help you figure out the difference between a good query and bad one. You’ll also learn how data wrangling and data science go hand in hand. The book is filled with datasets and practical examples to help you understand the concepts thoroughly, along with best practices to guide you at every stage of data wrangling.By the end of this book, you’ll be equipped with essential techniques and best practices for data wrangling, and will predominantly learn how to use clean and standardized data models to make informed decisions, helping businesses avoid costly mistakes.
Vaughn Vernon
DDD w pigułce Modelowanie oprogramowania jest kojarzone z pojęciem programowania dziedzinowego, w skrócie zwanego DDD. Jest to dość nowatorskie podejście do tworzenia architektury oprogramowania, a jego największą zaletą jest wysoka pewność uzyskiwania bardzo dobrych rezultatów. Programiści często błyskawicznie dostrzegają zalety DDD i korzyści płynące ze stosowania odpowiednich narzędzi, stąd technika ta cieszy się coraz większym uznaniem. Dopiero jednak pełne zrozumienie zasad stosowania wzorców projektowych DDD przez wszystkich zaangażowanych w projekt pozwala na osiągnięcie imponujących wyników przy projektowaniu skomplikowanych systemów oprogramowania. Ten zwięzły i czytelnie napisany podręcznik jest przeznaczony dla programistów, ekspertów dziedzinowych, menedżerów, analityków biznesowych, architektów informacji i testerów. Koncentruje się na praktycznej wiedzy niezbędnej do uzyskania pożądanych rezultatów. Wyjaśniono, jak segregować modele dziedzin za pomocą wzorca kontekstu ograniczonego, jak rozwinąć język wszechobecny, a także w jaki sposób zintegrować wiele kontekstów ograniczonych poprzez wykorzystanie relacji zespołowych i mechanizmów technicznych. Co najważniejsze, dowiesz się, jak podejście DDD działa w rzeczywistości i co zrobić, aby jak najszybciej cieszyć się jego zaletami. W książce przedstawiono następujące zagadnienia: wprowadzenie do DDD i zalety tego podejścia do projektowania projektowanie strategiczne DDD integrowanie istniejących systemów w ramach tworzenia nowych aplikacji modelowanie taktyczne - agregaty i zdarzenia dziedziny narzędzia do zarządzania projektami i przyśpieszania prac Narzędzia DDD - ciesz się udanym wdrożeniem!
![Deciphering Object-Oriented Programming with C++ [WARNING: NOT FOR USE IN OTHER MATERIAL/SEE CONTRACT]. A practical, in-depth guide to implementing object-oriented design principles to create robust code](https://static01.helion.com.pl/global/okladki/326x466/e_39y5.jpg)
Dorothy R. Kirk
Even though object-oriented software design enables more easily maintainable code, companies choose C++ as an OO language for its speed. Object-oriented programming in C++ is not automatic – it is crucial to understand OO concepts and how they map to both C++ language features and OOP techniques. Distinguishing your code by utilizing well-tested, creative solutions, which can be found in popular design patterns, is crucial in today’s marketplace. This book will help you to harness OOP in C++ to write better code.Starting with the essential C++ features, which serve as building blocks for the key chapters, this book focuses on explaining fundamental object-oriented concepts and shows you how to implement them in C++. With the help of practical code examples and diagrams, you’ll learn how and why things work. The book’s coverage furthers your C++ repertoire by including templates, exceptions, operator overloading, STL, and OO component testing. You’ll discover popular design patterns with in-depth examples and understand how to use them as effective programming solutions to solve recurring OOP problems.By the end of this book, you’ll be able to employ essential and advanced OOP concepts to create enduring and robust software.
Daniele Teti
Delphi is a cross-platform Integrated Development Environment (IDE) that supports rapid application development for Microsoft Windows, Apple Mac OS X, Google Android, and Apple iOS. It helps you to concentrate on the real business and save yourself the pain of wandering amid GUI widget details, or having to tackle inter-platform incompatibilities. It also has a wide range of drag-and-drop controls, helping you code your business logic into your business model, and it compiles natively for desktop and mobile platforms.This book will teach you how to design and develop applications, deploy them on the cloud platform, and distribute them within an organization via Google Play and other similar platforms.You will begin with the basics of Delphi and get acquainted with JSON format strings, XSLT transformations, unicode encodings and various types of streams. We then move on to more advanced topics such as developing higher-order functions and using enumerators and RTTI. You will get an understanding of how Delphi RTL functions and how to use FireMonkey in a VCL application. We will then cover topics such as multithreading, using the parallel programming library and putting Delphi on a server. We will also take a look at the new feature of WebBroker Apache modules and then ride the mobile revolution with FireMonkey. By the end of the book, you will be able to develop and deploy cross-platform applications using Delphi .
Primož Gabrijelčič
Performance matters! Users hate to use programs that are not responsive to interactions or run too slow to be useful. While becoming a programmer is simple enough, you require dedication and hard work to achieve an advanced level of programming proficiency where you know how to write fast code.This book begins by helping you explore algorithms and algorithmic complexity and continues by describing tools that can help you find slow parts of your code. Subsequent chapters will provide you with practical ideas about optimizing code by doing less work or doing it in a smarter way. The book also teaches you how to use optimized data structures from the Spring4D library, along with exploring data structures that are not part of the standard Delphi runtime library.The second part of the book talks about parallel programming. You’ll learn about the problems that only occur in multithreaded code and explore various approaches to fixing them effectively. The concluding chapters provide instructions on writing parallel code in different ways – by using basic threading support or focusing on advanced concepts such as tasks and parallel patterns.By the end of this book, you’ll have learned to look at your programs from a totally different perspective and will be equipped to effortlessly make your code faster than it is now.
Alexei Khlebnikov
Security and networking are essential features of software today. The modern internet is full of worms, Trojan horses, men-in-the-middle, and other threats. This is why maintaining security is more important than ever.OpenSSL is one of the most widely used and essential open source projects on the internet for this purpose. If you are a software developer, system administrator, network security engineer, or DevOps specialist, you’ve probably stumbled upon this toolset in the past – but how do you make the most out of it? With the help of this book, you will learn the most important features of OpenSSL, and gain insight into its full potential.This book contains step-by-step explanations of essential cryptography and network security concepts, as well as practical examples illustrating the usage of those concepts. You’ll start by learning the basics, such as how to perform symmetric encryption and calculate message digests. Next, you will discover more about cryptography: MAC and HMAC, public and private keys, and digital signatures. As you progress, you will explore best practices for using X.509 certificates, public key infrastructure, and TLS connections.By the end of this book, you’ll be able to use the most popular features of OpenSSL, allowing you to implement cryptography and TLS in your applications and network infrastructure.