Tip #3 – Verify callback before use — Setting the initial value of the callback pointer to NULL or to a generic handler allows the interrupt to validate that an interrupt handler has been set. When ...

A callback is a function that is executed through a pointer where the function being pointed to contains application specific code. Callbacks are normally passed into a function and provides the ...

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In ...

Node.js takes a different approach. It runs a single-threaded event loop registered with the system to handle connections, and each new connection causes a JavaScript callback function to fire ...

Sometimes you need a little snippet of code that you only need in one place — most commonly, as a callback function to pass another function — so why bother giving it a name?