Description: An event handler function is an essential component in programming that allows managing and responding to specific events within a system. These events can include user actions, such as mouse clicks or key presses, as well as system events, such as task completion or data arrival. The function is automatically triggered when the corresponding event occurs, allowing the program to execute a specific block of code in response. This responsiveness is fundamental for creating interactive and dynamic applications, as it enables developers to define specific behaviors that enhance the user experience. Event handler functions are common across various platforms and programming languages, and their implementation may vary, but their purpose remains the same: to facilitate interaction between the user and the software. They can be used to manage events related to the software’s functionality, ensuring that the system responds appropriately to user actions or changes in the environment.
