callbackpohjaisiin

callbackpohjaisiin is a Finnish term that translates to "callback-based" or "based on callbacks." In the context of computer programming, it refers to a programming paradigm or technique where a function is passed as an argument to another function. This passed function, known as a callback, is then executed by the receiving function at a later point in time, typically when a specific event occurs or a certain operation is completed.

This pattern is widely used in asynchronous programming, where tasks may take time to complete and the program needs to continue executing other operations without waiting. For example, when making a network request or reading a file, the program can initiate the operation and provide a callback function. Once the operation finishes, the callback function is automatically invoked with the result or any error information.

Callback-based programming helps manage the flow of control in non-blocking operations, preventing the application from freezing. It is a fundamental concept in many modern programming languages and frameworks, particularly in JavaScript for web development, but also appears in various other languages for handling events, timers, and asynchronous I/O. The use of callbacks allows for flexible and modular code design, enabling developers to define custom actions that should be performed upon the completion of a task.