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Bookmark or Share- Callback functions in C++ - Stack OverflowThe first callback is called if a function value and the gradient based on a vector of input values are required (logic callback: function value determination/gradient derivation). The second callback is called once for each algorithm step and receives certain information about the convergence of the algorithm (notification callback).
- language agnostic - What is a callback function? - Stack OverflowA callback function is a function that you pass to someone and let them call it at some point of time. I think people just read the first sentence of the wiki definition: a callback is a reference to executable code, or a piece of executable code, that is passed as an argument to other code.
- c# - What is a callback? - Stack OverflowA callback is a function that will be called when a process is done executing a specific task. The usage of a callback is usually in asynchronous logic. To create a callback in C#, you need to store a function address inside a variable. This is achieved using a delegate or the new lambda semantic Func or Action.
- What is a callback URL in relation to an API? - Stack OverflowThe callback URL is like that return envelope. You are basically saying, "I am sending you this data; once you are done with it, I am listening on this callback URL waiting your response." So the API will process the data you have sent then look at the callback to send you the response.
- What is a "callback" in C and how are they implemented?An asynchronous callback is provided to another function which is going to start a task and then return to the caller with the task possibly not completed. Synchronous callback. A synchronous callback is typically used to provide a delegate to another function to which the other function delegates some step of the task.
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