Combine Essentials: Publishers, Subscribers, and Subjects

Build a strong foundation in Combine and master real-world async data handling in Swift using Publishers and Subjects.

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Understand Combine’s purpose – Learn what Combine is and how it improves async programming.
Grasp core concepts – Master Publishers, Subscribers, Operators, and Subjects.
Use built-in publishers – Work with Just, Future, Timer, and network publishers.
Handle async streams – Manage continuous or delayed data updates.
Differentiate subjects – Know when to use PassthroughSubject vs. CurrentValueSubject.
Transform and decode data – Use Combine operators to process and decode JSON.
Integrate with SwiftUI – Bind Combine pipelines to SwiftUI state properties.
Manage subscriptions – Control stream lifecycles and prevent memory leaks.
Apply MVVM with Combine – Build reactive ViewModels that drive SwiftUI views.
Debug reactive flows – Simulate network streams and trace Combine pipelines.

Basic Swift programming skills – Comfortable with variables, functions, and control flow.
Understanding of optionals and error handling – Familiar with Optional, try, do/catch.
Experience with structs and classes – Know how to define and use data models.
Knowledge of closures – Able to write and use completion handlers.
Familiarity with Swift’s async/await – Understand asynchronous execution at a basic level.
Basic SwiftUI experience – Know how to build simple views and bind data with @State or @Published.
Awareness of MVVM architecture – Understand separation between Model, View, and ViewModel.
Some experience with JSON data – Know how to encode and decode JSON using Codable.
Comfort with Xcode – Able to create, build, and run Swift projects.
Fundamental understanding of reactive concepts – Optional but helpful; awareness that data can “stream” or change over time.

Q. How long do I have access to the course materials?
- A. You can view and review the lecture materials indefinitely, like an on-demand channel.
Q. Can I take my courses with me wherever I go?
- A. Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don't have an internet connection, some instructors also let their students download course lectures. That's up to the instructor though, so make sure you get on their good side!

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