ReadonlyaltitudeThe altitudeAngle read-only property of the PointerEvent interface represents the angle between a transducer (a pointer or stylus) axis and the X-Y plane of a device screen. The altitude angle describes whether the transducer is perpendicular to the screen, parallel, or at some angle in between.
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_ReadonlyazimuthThe azimuthAngle read-only property of the PointerEvent interface represents the angle between the Y-Z plane and the plane containing both the transducer (pointer or stylus) axis and the Y axis.
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. Use Event.stopPropagation() instead. Setting its value to true before returning from an event handler prevents propagation of the event. In later implementations, setting this to false does nothing. See Browser compatibility for details.
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 Event interface returns a boolean value which indicates whether 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.
ReadonlydetailThe UIEvent.detail read-only property, when non-zero, provides the current (or next, depending on the event) click count.
ReadonlyeventThe eventPhase read-only property of the Event interface indicates which phase of the event flow is currently being evaluated.
ReadonlyheightThe height read-only property of the PointerEvent interface represents the height of the pointer's contact geometry, along the y-axis (in CSS pixels). Depending on the source of the pointer device (for example a finger), for a given pointer, each event may produce a different value.
ReadonlyisThe isPrimary read-only property of the PointerEvent interface indicates whether or not the pointer device that created the event is the primary pointer. It returns true if the pointer that caused the event to be fired is the primary one and returns false otherwise.
ReadonlyisThe isTrusted read-only property of the Event interface is a boolean value that is true 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 EventTarget.dispatchEvent(). 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 (or pointer) between the given move event and the previous move event of the same type.
ReadonlymovementThe movementY read-only property of the MouseEvent interface provides the difference in the Y coordinate of the mouse (or pointer) between the given move event and the previous move event of the same type.
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. This includes any portion of the document not currently visible.
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. This includes any portion of the document not currently visible.
ReadonlypersistentThe persistentDeviceId read-only property of the PointerEvent interface is a unique identifier for the pointing device generating the PointerEvent. This provides a secure, reliable way to identify multiple pointing devices (such as pens) interacting with the screen simultaneously.
ReadonlypointerThe pointerId read-only property of the PointerEvent interface is an identifier assigned to the pointer that triggered the event. The identifier is unique, being different from the identifiers of all other active pointer events.
ReadonlypointerThe pointerType read-only property of the PointerEvent interface indicates the device type (mouse, pen, or touch) that caused a given pointer event.
ReadonlypressureThe pressure read-only property of the PointerEvent interface indicates the normalized pressure of the pointer input.
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. Use Event.target instead.
ReadonlytangentialThe tangentialPressure read-only property of the PointerEvent interface represents the normalized tangential pressure of the pointer input (also known as barrel pressure or cylinder stress).
ReadonlytargetThe read-only target property of the Event interface is a reference to the object onto which the event was dispatched. It is different from Event.currentTarget when the event handler is called during the bubbling or capturing phase of the event.
ReadonlytiltThe tiltX read-only property of the PointerEvent interface is the angle (in degrees) between the Y-Z plane of the pointer and the screen. This property is typically only useful for a pen/stylus pointer type.
ReadonlytiltThe tiltY read-only property of the PointerEvent interface is the angle (in degrees) between the X-Z plane of the pointer and the screen. This property is typically only useful for a pen/stylus pointer type.
ReadonlytimeThe timeStamp read-only property of the Event interface returns the time (in milliseconds) at which the event was created.
ReadonlytwistThe twist read-only property of the PointerEvent interface represents the clockwise rotation of the pointer (e.g., pen stylus) around its major axis, in degrees.
ReadonlytypeThe type read-only property of the Event interface returns a string containing the event's type. It is set when the event is constructed and is the name commonly used to refer to the specific event, such as click, load, or error.
ReadonlyviewThe UIEvent.view read-only property returns the WindowProxy object from which the event was generated. In browsers, this 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.
ReadonlywidthThe width read-only property of the PointerEvent interface represents the width of the pointer's contact geometry along the x-axis, measured in CSS pixels. Depending on the source of the pointer device (such as a finger), for a given pointer, each event may produce a different value.
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. This does not include nodes in shadow trees if the shadow root was created with its ShadowRoot.mode closed.
The getCoalescedEvents() method of the PointerEvent interface returns a sequence of PointerEvent instances that were coalesced (merged) into a single pointermove or pointerrawupdate event. Instead of a stream of many pointermove events, user agents coalesce multiple updates into a single event. This helps with performance as the user agent has less event handling to perform, but there is a reduction in the granularity and accuracy when tracking, especially with fast and large movements.
Available only in secure contexts.
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 getPredictedEvents() method of the PointerEvent interface returns a sequence of PointerEvent instances that are estimated future pointer positions. How the predicted positions are calculated depends on the user agent, but they are based on past points, current velocity, and trajectory.
The MouseEvent.initMouseEvent() method initializes the value of a mouse event once it's been created (normally using the Document.createEvent() method).
The preventDefault() method of the Event interface tells the user agent that the event is being explicitly handled, so its default action, such as page scrolling, link navigation, or pasting text, should not be taken.
The stopImmediatePropagation() method of the Event interface prevents other listeners of the same event from being called.
The stopPropagation() method of the Event interface prevents further propagation of the current event in the capturing and bubbling phases. It does not, however, prevent any default behaviors from occurring; for instance, clicks on links are still processed. If you want to stop those behaviors, see the preventDefault() method. It also does not prevent propagation to other event-handlers of the current element. If you want to stop those, see stopImmediatePropagation().
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PointerEventinterface represents the state of a DOM event produced by a pointer such as the geometry of the contact point, the device type that generated the event, the amount of pressure that was applied on the contact surface, etc.MDN Reference