MouseEvent: initMouseEvent() method

Deprecated

Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.

The MouseEvent.initMouseEvent() method initializes the value of a mouse event once it's been created (normally using the Document.createEvent() method).

Warning: Do not use this method anymore as it is deprecated.

Instead use specific event constructors, like MouseEvent(). The section on Creating and dispatching events gives more information about the way to use these.

Events initialized in this way must have been created with the Document.createEvent() method. This method must be called to set the event before it is dispatched, using EventTarget.dispatchEvent().

Syntax

js
initMouseEvent(type, canBubble, cancelable, view,
                     detail, screenX, screenY, clientX, clientY,
                     ctrlKey, altKey, shiftKey, metaKey,
                     button, relatedTarget)

Parameters

type

the string to set the event's type to. Possible types for mouse events include: click, mousedown, mouseup, mouseover, mousemove, mouseout.

canBubble

whether or not the event can bubble. Sets the value of Event.bubbles.

cancelable

whether or not the event's default action can be prevented. Sets the value of Event.cancelable.

view

the event's AbstractView. You should pass the window object here. Sets the value of UIEvent.view.

detail

the event's mouse click count. Sets the value of UIEvent.detail.

screenX

the event's screen x coordinate. Sets the value of MouseEvent.screenX.

screenY

the event's screen y coordinate. Sets the value of MouseEvent.screenY.

clientX

the event's client x coordinate. Sets the value of MouseEvent.clientX.

clientY

the event's client y coordinate. Sets the value of MouseEvent.clientY.

ctrlKey

whether or not control key was pressed during the Event. Sets the value of MouseEvent.ctrlKey.

altKey

whether or not alt key was pressed during the Event. Sets the value of MouseEvent.altKey.

shiftKey

whether or not shift key was pressed during the Event. Sets the value of MouseEvent.shiftKey.

metaKey

whether or not meta key was pressed during the Event. Sets the value of MouseEvent.metaKey.

button

the event's mouse button.

relatedTarget

the event's related EventTarget. Only used with some event types (e.g., mouseover and mouseout). In other cases, pass null.

Return value

None (undefined).

Examples

js
const event = document.createEvent("MouseEvents");
event.initMouseEvent(
  "click",
  true,
  true,
  window,
  0,
  0,
  0,
  80,
  20,
  false,
  false,
  false,
  false,
  0,
  null,
);
document.body.dispatchEvent(event);

Specifications

Specification
Pointer Events
# dom-mouseevent-initmouseevent

Browser compatibility

See also