What is a service in AngularJS?

Instruction: Define what services are in AngularJS and their typical use cases.

Context: This question evaluates the candidate's understanding of services in AngularJS, their significance in promoting code reusability and managing application-wide data.

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An AngularJS service is an injectable object or function used for shared behavior such as API access, state coordination or formatting. The injector creates a service lazily when it is requested and caches the resulting instance within that injector. It is not a singleton shared across all browser tabs, separate injectors or servers.

A factory registration supplies a function whose return value becomes the service...

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