CALLBACK FACILITY Meaning and
Definition
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A callback facility, also known as a callback function or callback mechanism, refers to a programming feature that allows the execution of a specific function or code block at a later point in a program's execution. It entails providing a reference to a function as an argument to another function, wherein the referenced function is expected to be called back or executed later on. The purpose of this mechanism is to enable the program to perform certain actions based on events, conditions, or triggers that occur within the program or the underlying software system.
When a callback facility is employed, the control flow may deviate from the normal sequence of execution. Instead, the program may move to a different section where the callback function will be invoked or executed at a later time. The callback function is typically defined separately from the function that will eventually call it, allowing for code modularity and reusability.
The utility of a callback facility is evident in various programming paradigms and environments. It is particularly useful in event-driven programming, where the execution of specific functions is tied to the occurrence of specific events. By utilizing a callback mechanism, events such as user inputs, timers, network interactions, or system notifications can trigger the execution of custom-defined functions or pieces of code, enhancing the flexibility and interactivity of the software.
In summary, a callback facility enables the execution of a designated function or code block at a later point in a program's execution, offering enhanced modularity and event-driven capabilities within software development.
Common Misspellings for CALLBACK FACILITY
- xallback facility
- vallback facility
- fallback facility
- dallback facility
- czllback facility
- csllback facility
- cwllback facility
- cqllback facility
- caklback facility
- caplback facility
- caolback facility
- calkback facility
- calpback facility
- caloback facility
- callvack facility
- callnack facility
- callhack facility
- callgack facility
- callbzck facility
- callbsck facility
Etymology of CALLBACK FACILITY
The word "callback" comes from the combination of "call" and "back". "Call" refers to the action of someone initiating a communication or contact, while "back" indicates a return to a previous state or place. In the context of telecommunications or computer programming, a "callback facility" refers to a feature that enables a system to initiate a return call to a designated number or address as a response to a particular event or request. By utilizing this facility, a system can maintain a form of interaction or communication with the user or another system.
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