Gennemførselblokke

Gennemførselblokke is a Danish term that translates to "completion blocks" or "execution blocks" in English. In the context of programming, it refers to a specific programming construct that allows for the execution of a block of code after a certain operation has completed. This is particularly relevant in asynchronous programming where operations do not finish immediately. When an asynchronous task, such as a network request or a file read, finishes its execution, it can then invoke a completion block. This block contains the code that should be run with the results of the asynchronous operation or to handle any errors that may have occurred. This pattern helps to manage the flow of control in programs that rely on non-blocking operations, preventing the main program thread from being stalled while waiting for long-running tasks. The use of completion blocks is a common strategy for handling callbacks and ensuring that subsequent actions are performed in the correct order. It promotes a more responsive user interface and efficient resource utilization by allowing other tasks to proceed while waiting for asynchronous operations to conclude.