Async Operations in Three Styles | Dataford Interview Questions

Implement an async operation in three ways: callbacks, Combine, and async/await, with tests provided to validate your solution.

For this Python exercise, the operation doubles an integer and must expose equivalent callback, publisher, and coroutine implementations. Return the three results in a dictionary with keys callback, combine, and async.

Constraints

value is an integer.
The callback, publisher, and coroutine paths must produce equivalent results.
The returned dictionary must contain exactly the keys callback, combine, and async.
The callback path must complete before its result is returned.

Function Signature

def async_operation_variants(value):

Your question is Async Operations in Three Styles. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Implement an async operation in three ways: callbacks, Combine, and async/await, with tests provided to validate your solution.

Constraints

value is an integer.
The callback, publisher, and coroutine paths must produce equivalent results.
The returned dictionary must contain exactly the keys callback, combine, and async.
The callback path must complete before its result is returned.

Function Signature

def async_operation_variants(value):

Your question is Async Operations in Three Styles. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.