ReadonlyaltThe MouseEvent.altKey read-only property is a boolean value that indicates whether the alt key was pressed or not when a given mouse event occurs.
ReadonlyAT_ReadonlybubblesThe bubbles read-only property of the Event interface indicates whether the event bubbles up through the DOM tree or not.
ReadonlyBUBBLING_ReadonlybuttonThe MouseEvent.button read-only property indicates which button was pressed or released on the mouse to trigger the event.
ReadonlybuttonsThe MouseEvent.buttons read-only property indicates which buttons are pressed on the mouse (or other input device) when a mouse event is triggered.
ReadonlycancelableThe cancelable read-only property of the Event interface indicates whether the event can be canceled, and therefore prevented as if the event never happened.
The cancelBubble property of the Event interface is deprecated.
ReadonlyCAPTURING_ReadonlyclientThe clientX read-only property of the MouseEvent interface provides the horizontal coordinate within the application's viewport at which the event occurred (as opposed to the coordinate within the page).
ReadonlyclientThe clientY read-only property of the MouseEvent interface provides the vertical coordinate within the application's viewport at which the event occurred (as opposed to the coordinate within the page).
ReadonlycomposedThe read-only composed property of the or not the event will propagate across the shadow DOM boundary into the standard DOM.
ReadonlyctrlThe MouseEvent.ctrlKey read-only property is a boolean value that indicates whether the ctrl key was pressed or not when a given mouse event occurs.
ReadonlycurrentThe currentTarget read-only property of the Event interface identifies the element to which the event handler has been attached.
ReadonlydefaultThe defaultPrevented read-only property of the Event interface returns a boolean value indicating whether or not the call to Event.preventDefault() canceled the event.
ReadonlydeltaThe WheelEvent.deltaMode read-only property returns an unsigned long representing the unit of the delta values scroll amount.
ReadonlydeltaThe WheelEvent.deltaX read-only property is a double representing the horizontal scroll amount in the You must check the deltaMode property to determine the unit of the deltaX value.
ReadonlydeltaThe WheelEvent.deltaY read-only property is a double representing the vertical scroll amount in the You must check the deltaMode property to determine the unit of the deltaY value.
ReadonlydeltaThe WheelEvent.deltaZ read-only property is a double representing the scroll amount along the z-axis, in the You must check the deltaMode property to determine the unit of the deltaZ value.
ReadonlydetailThe UIEvent.detail read-only property, when non-zero, provides the current (or next, depending on the event) click count.
ReadonlyDOM_ReadonlyDOM_ReadonlyDOM_ReadonlyeventThe eventPhase read-only property of the being evaluated.
ReadonlyisThe isTrusted read-only property of the when the event was generated by the user agent (including via user actions and programmatic methods such as HTMLElement.focus()), and false when the event was dispatched via The only exception is the click event, which initializes the isTrusted property to false in user agents.
ReadonlylayerThe MouseEvent.layerX read-only property returns the horizontal coordinate of the event relative to the current layer.
ReadonlylayerThe MouseEvent.layerY read-only property returns the vertical coordinate of the event relative to the current layer.
ReadonlymetaThe MouseEvent.metaKey read-only property is a boolean value that indicates whether the meta key was pressed or not when a given mouse event occurs.
ReadonlymovementThe movementX read-only property of the MouseEvent interface provides the difference in the X coordinate of the mouse pointer between the given event and the previous Element/mousemove_event event.
ReadonlymovementThe movementY read-only property of the MouseEvent interface provides the difference in the Y coordinate of the mouse pointer between the given event and the previous Element/mousemove_event event.
ReadonlyNONEReadonlyoffsetThe offsetX read-only property of the MouseEvent interface provides the offset in the X coordinate of the mouse pointer between that event and the padding edge of the target node.
ReadonlyoffsetThe offsetY read-only property of the MouseEvent interface provides the offset in the Y coordinate of the mouse pointer between that event and the padding edge of the target node.
ReadonlypageThe pageX read-only property of the MouseEvent interface returns the X (horizontal) coordinate (in pixels) at which the mouse was clicked, relative to the left edge of the entire document.
ReadonlypageThe pageY read-only property of the MouseEvent interface returns the Y (vertical) coordinate (in pixels) at which the mouse was clicked, relative to the top edge of the entire document.
ReadonlyrelatedThe MouseEvent.relatedTarget read-only property is the secondary target for the mouse event, if there is one.
The Event property returnValue indicates whether the default action for this event has been prevented or not.
ReadonlyscreenThe screenX read-only property of the MouseEvent interface provides the horizontal coordinate (offset) of the mouse pointer in screen coordinates.
ReadonlyscreenThe screenY read-only property of the MouseEvent interface provides the vertical coordinate (offset) of the mouse pointer in screen coordinates.
ReadonlyshiftThe MouseEvent.shiftKey read-only property is a boolean value that indicates whether the shift key was pressed or not when a given mouse event occurs.
ReadonlysrcThe deprecated Event.srcElement is an alias for the Event.target property.
ReadonlytargetThe read-only target property of the dispatched.
ReadonlytimeThe timeStamp read-only property of the Event interface returns the time (in milliseconds) at which the event was created.
ReadonlytypeThe type read-only property of the Event interface returns a string containing the event's type.
ReadonlyviewThe UIEvent.view read-only property returns the is the Window object the event happened in.
ReadonlywhichThe UIEvent.which read-only property of the UIEvent interface returns a number that indicates which button was pressed on the mouse, or the numeric keyCode or the character code (charCode) of the key pressed on the keyboard.
ReadonlyxThe MouseEvent.x property is an alias for the MouseEvent.clientX property.
ReadonlyyThe MouseEvent.y property is an alias for the MouseEvent.clientY property.
The composedPath() method of the Event interface returns the event's path which is an array of the objects on which listeners will be invoked.
The MouseEvent.getModifierState() method returns the current state of the specified modifier key: true if the modifier is active (i.e., the modifier key is pressed or locked), otherwise, false.
The MouseEvent.initMouseEvent() method initializes the value of a mouse event once it's been created (normally using the Document.createEvent() method).
The UIEvent.initUIEvent() method initializes a UI event once it's been created.
OptionalbubblesArg: booleanOptionalcancelableArg: booleanOptionalviewArg: null | WindowOptionaldetailArg: numberThe preventDefault() method of the Event interface tells the user agent that if the event does not get explicitly handled, its default action should not be taken as it normally would be.
The stopImmediatePropagation() method of the If several listeners are attached to the same element for the same event type, they are called in the order in which they were added.
The stopPropagation() method of the Event interface prevents further propagation of the current event in the capturing and bubbling phases.
The
WheelEventinterface represents events that occur due to the user moving a mouse wheel or similar input device.MDN Reference