What is the correct way to remove an event listener in JavaScript?

The correct way to remove an event listener in JavaScript is by using the removeEventListener() method. This method allows you to remove a previously added event listener from an element.

To successfully remove an event listener, it is crucial that the parameters passed to removeEventListener() match those used in the original addEventListener() call. This includes the event type (like "click" or "keydown") and the actual function that was assigned as the event handler. If these parameters do not match, the listener will not be removed, which can lead to unexpected behavior in your code.

This method is an essential part of managing event listeners, especially in scenarios where elements are dynamically added or removed from the DOM, or where there is a need to clean up resources to prevent memory leaks.

Other methods listed, such as calling the event object directly or using stopPropagation(), do not facilitate the removal of event listeners. Similarly, defining a new event listener with the same parameters does not remove the existing one; it simply adds another, potentially leading to multiple handlers being invoked for the same event.