Promises vs Observables

Developers should learn Promises to manage asynchronous tasks like API calls, file I/O, or database queries without falling into 'callback hell' meets developers should learn observables when building applications that require handling real-time data, event-driven architectures, or complex asynchronous operations, such as user interactions, api calls, or websocket connections. Here's our take.

Promises

Nice Pick

Developers should learn Promises to manage asynchronous tasks like API calls, file I/O, or database queries without falling into 'callback hell'

Pros

• They are essential for modern web development, especially when working with frameworks like React or Node
• Related to: javascript, async-await

Cons

• Specific tradeoffs depend on your use case

Observables

Developers should learn Observables when building applications that require handling real-time data, event-driven architectures, or complex asynchronous operations, such as user interactions, API calls, or WebSocket connections

Pros

• They are particularly useful in front-end development for managing state changes and data flow in a declarative manner, improving code readability and maintainability compared to traditional callbacks or promises
• Related to: rxjs, reactive-programming

Cons

• Specific tradeoffs depend on your use case

The Verdict

Use Promises if: You want they are essential for modern web development, especially when working with frameworks like react or node and can live with specific tradeoffs depend on your use case.

Use Observables if: You prioritize they are particularly useful in front-end development for managing state changes and data flow in a declarative manner, improving code readability and maintainability compared to traditional callbacks or promises over what Promises offers.

The Bottom Line

Promises wins

Developers should learn Promises to manage asynchronous tasks like API calls, file I/O, or database queries without falling into 'callback hell'