Event listener in javascript shorts javascript

event listeners in javascript are functions that wait for a specific event to occur on a particular element in the document object model (dom). they enable developers to create interactive web applications by responding to user actions like clicks, mouse movements, keyboard input, and more. when an event is triggered, the associated event listener executes its designated function, allowing for dynamic changes to the web page's content or behavior without needing a full page reload.

event listeners can be added to various html elements, such as buttons, forms, and links, enhancing user experience by providing immediate feedback. they can be registered using methods like `addeventlistener`, which allows multiple listeners for a single event and provides options for event capturing and bubbling. properly managing event listeners is crucial for performance and can prevent memory leaks, especially in complex applications. overall, they are essential for modern web development, facilitating seamless interaction between users and web applications.
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