Solution: The event type is a string that specifies what kind of event occurred. The type “mousemove”, for example, means that the user moved the mouse.

Solution: The event target is the object on which the event occurred or with which the event is associated. When we speak of an event, we must specify both the type and the target. The target property of the Event interface is a reference to the object that dispatched the event.

Solution: An event handler is in general, a function that handles or responds to an event. For example onclick, onkeypress, onload etc are event handler functions.

Solution: When an event of the specified type occurs on the specified target, the browser invokes the handler. For example onclick function is executed when mouse is clicked.

Solution: All event objects have a type property that specifies the event type. Event type is a string that specifies what kind of event occurred.

Solution: Event propagation is the process by which the browser decides which objects to trigger event handlers. Event propagation is a way to describe the “stack” of events that are fired in a web browser.

Solution: Event bubbling and capturing are two ways of event propagation in the HTML DOM API. With bubbling, the event is first captured and handled by the innermost element and then propagated to outer elements. With capturing, the event is first captured by the outermost element and propagated to the inner elements.

Solution: These are events that are directly tied to a specific input device, such as the mouse or keyboard) They include legacy event types such as “mousedown”, “mousemove”, “mouseup”, “keydown”, “keypress”, and “keyup” and also new touch specific events like “touchmove” and “gesturechange”.

Solution: UI events are higher-level events, often on HTML form elements that define a user interface for a web application. They include the focus event (when a text input field gains keyboard focus), the change event when the user changes the value displayed by a form element, and the submit event when the user clicks a Submit button in a form.

Solution: These are input events that are not directly tied to a specific input device. The click event, for example, indicates that a link or button (or other document element) has been activated) This is often done via a mouse click, but it could also be done by keyboard or (on touch-sensitive devices) by gesture.