Angular Observables and Promises
A Practical Guide to Asynchronous Programming
Published on 3. November 2024
18 pages
978-3-384-40988-1 (ISBN)
Description
This book is a concept-driven guide to asynchronous programming in Angular, focused on helping developers understand how Promises and Observables work in real-world systems.
Rather than providing step-by-step coding tutorials, it explains the underlying mental models required to design reliable and scalable applications. Readers will learn how data flows over time, how to think in terms of streams instead of single values, and how to handle complex asynchronous scenarios such as user input, API coordination, and event-driven behavior.
The book covers core topics including Promises, Observables, RxJS operators, higher-order mapping, error handling, performance considerations, and architectural design. It also explores common pitfalls such as nested subscriptions, memory leaks, and uncontrolled data flows, and provides clear strategies to avoid them.
By the end of the book, readers will be able to design clean, predictable, and maintainable asynchronous systems in Angular, with a strong focus on reasoning and system thinking rather than syntax alone.
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11/2024
Abdelfattah Ragab
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11/2024
Abdelfattah Ragab
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Person
Abdelfattah Ragab is an experienced software developer with over 20 years of experience in the field. In his long career, he has specialized in various aspects of web development, especially front-end technologies. He is known for his expertise in frameworks such as Angular and React, as well as his knowledge of HTML5 and CSS.
Abdelfattah is also a successful author who has written several books for beginners and experienced developers. His works include titles such as "Responsive Layouts: Flex, Grid & Multi-Column" and "Angular Shopping Store"," which provide a comprehensive insight into modern web development practices. These books cover not only basic concepts but also advanced techniques, making them valuable resources for anyone looking to improve their skills in web technologies.
With his publications, Abdelfattah aims to bridge the gap between theoretical knowledge and practical application. His books often include practical projects, such as developing e-commerce applications and integrating payment systems like Stripe, which help readers gain real-world experience. This approach reflects his commitment to providing his readers with a deeper understanding of web development.
In addition to his writing, Abdelfattah works as a front-end lead, which allows him to stay up to date on industry trends and best practices.
