Traditionally, JavaScript has been a single-threaded language. Nearly all online forum posts, books, online documentation, and libraries refer to the language as single threaded. Thanks to recent advancements in the language--such as the Atomics and SharedArrayBuffers objects and Web Workers in the browser--JavaScript is now a multi-threaded language. These features will go down as being the biggest paradigm shift for the world's most popular programming language. Multithreaded JavaScript explores the various features that JavaScript runtimes have at their disposal for implementing multithreaded programming, providing both practical real-world examples, as well as reference material. Learn what multithreaded programming is and how you can benefit from it Understand the differences between a web worker, a service worker, and a worker thread Know when and when not to use threads in an application Orchestrate communication between threads by leveraging the Atomics object Build high-performance applications using the knowledge you gain from this book Benchmark performance to learn if you'll benefit from multithreading

Musculo-skeletal problems underlie many of the cases seen by doctors working in accident and emergency departments. It is estimated that over 4 million patients per annum will attend an A & E department in England and Wales with such a condition. Although many of these problems may be considered less serious, when compared to others seen in A & E departments, a misdiagnosis could have far reaching and even fatal consequences. It is also the area where statistically A & E doctors are most likely to make an error of diagnosis. Musculo-skeletal problems in emergency medicine provides guidelines on the history taking and examination of patients with musculo-skeletal problems. The book starts by explaining the pathology of musculo-skeletal injuries, describing the wide range of non-traumatic musculo-skeletal problems that present to an A & E department. Each section of the body is then dealt with in detail, with advice given on the management of Uspecific patient presentations. Throughout, emphasis is placed on the diagnosis of traumatic and non-traumatic injuries, and detailed guidance provided on their initial investigation, management, and ongoing referral. This book is intended for