In this book, Andrew Atkinson looks at how to build faster, more reliable Rails apps by taking the best advanced PostgreSQL and Active Record capabilities. He shows how to work with multi-terabyte databases, and with complex Active Record, SQL, and specialized Indexes, using dozens of practical and hands-on exercises based on PostgreSQL databases and Ruby on Rails applications.

This book provides a step-by-step guide to learning RxJS and reactivity. Lamis Chebbi considers reactive patterns, efficient data management, and the streamlined implementation of common features with minimal code. This second edition has been reworked in light of the latest version of Angular, introducing new reactive patterns based on Angular Signals, which play a pivotal role in enabling fine-grained reactivity within Angular and enhancing change detection and user interface rendering.

Nat Eliason wanted to make as much money as possible in the six months before his first child was born, and chose the crypto sector. Within a year, he'd made millions writing code holding hundreds of millions of dollars of other people's money. He'd been hacked. He'd sold a picture of a monkey for two hundred grand. He'd become an influencer. This book, subtitled "Winning and Losing Millions in the New Frontier of Finance", is his account of the unregulated world being built on the blockchain.

In this book Anders Schau Knatten explores some of C++'s most interesting quirks through 25 puzzles, from the useful to the outright weird. How does initialization actually work? Do temporaries even exist? Why is +!!""  a valid expression in C++? As he works through each puzzle, he peels off some of the layers of complexity of C++, providing a fundamental understanding of how the language works.

This book looks at how to use R for everything from workload automation and creating online reports, to interpreting data to map making. Written by David Keyes, founder of a popular online training platform for R, the book offers a simple way in for users who just want to automate repetitive tasks or visualize data, without the need for complex math.

The World of Warcraft Diary offers an unfiltered look inside the gaming industry. It was written by the game's first level designer, John Staats, from notes he took during WoW's creation. The book explains why developers do things and debunks popular myths about the games industry. In great detail it covers what it took to finish the project; the surprises, the arguments, the mistakes, and Blizzard's formula for success.

This book introduces Kotlin to programmers who have at least the basics of programming. The book is written by Mike James, the editor of I-Programmer.info and author of many books. This third edition was prompted by the release of Kotlin 2, which uses a new compiler that makes it faster. The most important feature of Kotlin 2 is its full support for Compose Multiplatform, a UI framework for cross-platform development that encompasses desktop, web, Android and iOS. This innovative system is covered in a new chapter which introduces the way Compose works and how it exploits Kotlin's unique features.

This book shows how R can be successfully applied to the field of operations research (OR). Jim Duggan's approach is centred on the idea of the future OR professional as someone who can combine knowledge of key OR techniques (e.g., simulation, linear programming, data science, and network science) with an understanding of R, including tools for data representation, manipulation, and analysis.

This book sets out the case for Bitcoin being 'resistance money', arguing that in an imperfect world of rampant inflation, creeping authoritarianism, surveillance, censorship, and financial exclusion, bitcoin empowers individuals to elude the expanding reach and tightening grip of institutions both public and private. Andrew M. Bailey, Bradley Rettler and Craig Warmke begin by explaining why bitcoin was invented, how it works, and where it fits among other kinds of money. 

This book aims to improve the reader's pandas skills to a professional-level through two hundred exercises. Reuven Lerner tests your abilities against common pandas challenges such as importing and exporting, data cleaning, visualization, and performance optimization. Each exercise utilizes a real-world scenario based on real-world data, from tracking the parking tickets in New York City, to working out which country makes the best wines.

This book describes the historical development of the architectures of the first computers built by the German inventor Konrad Zuse in Berlin between 1936 and 1945. Zuse's machines are historically important because they anticipated many features of modern computers.Raul Rojas examines the machines and features such as the separation of processor and memory, the ability to compute with floating-point numbers, a hardware architecture based on microprogramming of the instruction set, and a layered design with a high-level programming language on top.

This book tells the inside story of the largest law-enforcement sting operation ever, in which the FBI made its own tech start-up to wiretap the world. Joseph Cox looks at how a powerful app for secure communications called Anom took root among organized criminals. They believed Anom allowed them to conduct business in the shadows. Except for one thing: it was secretly run by the FBI. The book reveals the true scale and stakes of this unprecedented operation through the agents and crooks who were there.