Angular Interview Practice

An observable in Angular is primarily used to handle asynchronous data streams that can be subscribed to. This functionality allows developers to work with data that may not be immediately available, such as data fetched from a remote server or user input events, in a more manageable and responsive way.

Observables can emit multiple values over time, giving rise to a continuous flow of data. Developers can subscribe to these observable streams to react to the emitted values whenever they become available. This contrasts with synchronous programming, where the sequence of execution is strictly ordered and values are processed as they are produced without any asynchronous behavior.

The design of observables is particularly useful in Angular applications where real-time data updating is often necessary, such as in forms with user input or in services that fetch data from APIs. Observables can also be combined with various operators for transformations, filtering, and managing concurrency, thereby enhancing their usability for complex data handling scenarios in modern web applications.