Question 1

How do I cancel a subscription in zen-observable?

Accepted Answer

You can cancel by calling the unsubscribe method on the subscription object returned from subscribe, or by returning a cleanup function from the subscriber, as shown in the new Observable example in the README.

Question 2

zen-observable vs RxJS: which one should I use?

Accepted Answer

zen-observable is lighter and spec-compliant, ideal for minimal setups or library authors. RxJS offers a vast operator library and more features for complex reactive programming. Choose based on your project's need for simplicity versus comprehensive functionality.

Question 3

How to handle errors in zen-observable streams?

Accepted Answer

Provide an error callback in the subscribe method or use the error method on an observer object. For advanced handling like retries, you'll need to implement custom logic since the library doesn't include built-in error recovery operators.

Question 4

Can I use zen-observable with async/await?

Accepted Answer

Yes, through methods like forEach and all that return Promises, allowing you to use async/await for easier asynchronous code. The README shows examples of using forEach with .then() and .catch().

Question 5

Is zen-observable compatible with Node.js?

Accepted Answer

Yes, it works in Node.js as a standard JavaScript library, but ensure Promises are available either natively or via a polyfill, as noted in the installation requirements.

Question 6

How to create a custom observable from scratch in zen-observable?

Accepted Answer

Use the new Observable constructor with a subscriber function that defines value emission and cleanup, as demonstrated in the API section with the timer example for asynchronous operations.

zen-observable

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