What is the difference between Observables and Promises?
An example of an AI chatbot conversation about the differences between Observables and Promises in JavaScript.
What is the difference between Observables and Promises?
Both Observables and Promises are used for handling asynchronous operations in JavaScript, but they have key differences. A Promise represents a single future value, while an Observable can emit multiple values over time.
Can you explain how they handle multiple values?
Sure! A Promise can only resolve once and provides a single value, whereas an Observable can emit multiple values and can be subscribed to for updates.
What about cancellation? How do they differ?
Promises cannot be cancelled once initiated, while Observables can be unsubscribed from, allowing for cancellation of ongoing operations.
Which one should I use for my project?
It depends on your use case. If you need to handle multiple values or streams of data, go for Observables. For a single asynchronous operation, Promises are simpler.
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