Publishers / Subscribers
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What is Publishers / Subscribers?
The Combine framework in iOS uses Publishers and Subscribers as core components for reactive programming. Publishers are types that can emit a sequence of values over time, representing sources of asynchronous events or data. Subscribers receive and process these values, defining how to handle the published data. Publishers can emit multiple values, complete successfully, or terminate with an error. Subscribers can receive and react to these events, often updating UI or triggering further operations.
Free resources to learn Publishers / Subscribers
More in stage 15: Reactive Programming
Publishers / Subscribers: common questions
Can I learn Publishers / Subscribers in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Publishers / Subscribers in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Publishers / Subscribers tutorial for beginners?
It is lesson 85 of 170 in the free iOS roadmap, in stage 15, Reactive Programming. If you are new to iOS, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.