Description: An event listener in web applications is a function that waits for and responds to specific events occurring within the application. These events can be user actions, such as button clicks or form submissions, as well as system events, like application initialization or changes in the database. Listeners allow developers to define custom behaviors that automatically execute when these events occur, facilitating the creation of interactive and dynamic applications. In various frameworks and libraries, listeners are often implemented using decorators or specific functions that associate actions with particular events. This not only enhances code modularity but also allows for better management of business logic, as developers can clearly separate different parts of the application. In summary, event listeners are fundamental for creating reactive web applications, enabling the application to efficiently respond to user interactions and other relevant events.
