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Event

Summary

Represents an event.

Properties

bubbles
Gets a value that indicates whether an event propagates up from the event target.
cancelable
Gets a value that indicates whether you can cancel an event’s default action.
currentTarget
Gets the event target that is currently being processed.
defaultPrevented
Gets whether the default action should be canceled.
eventPhase
Gets the event phase that is being evaluated.
isTrusted
Gets a value that indicates whether a trusted event source created an event.
target
Gets the element that is the original target of the event.
timeStamp
Gets the time, in milliseconds, when an event occurred.
type
Gets the name of an event.

Methods

initEvent
Initializes a new generic event that the createEvent method created.
preventDefault
Cancels the default action of an event, if possible.
stopImmediatePropagation
Prevents any further propagation of an event.
stopPropagation
Prevents propagation of an event beyond the current target.

Events

DOMContentLoaded
:

afterprint
:

afterupdate
:

beforeactivate
:

beforecopy
:

beforecut
:

beforeeditfocus
:

beforepaste
:

beforeprint
:

beforeunload
:

beforeupdate
:

bounce
:

cellchange
:

change
:

contextmenu
:

controlselect
:

copy
:

cut
Fires after a data selection is cut to the clipboard.
dataavailable
Fires when new data at a data source becomes available.
datasetchanged
Fires when content at a data source has changed.
datasetcomplete
Fires when data transfer from the data source has completed.
deactivate
Sets an active version of an object to not active.
error
Fires when an error occurs.
errorupdate
Executes any error handling associated with the event.

filterchange
:

finish
:

Examples

This example uses addEventListener to listen to the load event in order to change the title of the page to indicate that the page is done loading. It uses isTrusted to make sure the event was triggered by the user agent itself and not by some script.

function initialize(e) {
  if (e.isTrusted) {
    document.title = "The page is done loading.";
  }
}
window.addEventListener("load", initialize, false);

This example uses addEventListener to listen to the keydown event and suppress key down operations using the preventDefault method of the Event instance object. This causes any key presses that occurs within text fields not to emit text into the fields.

function suppressPresses(e) {
  e.preventDefault();
}
document.addEventListener("keydown", suppressPresses, false);

Related specifications

DOM Level 3 Events
Working Draft

See also

Related pages

Attributions