CloseEvent: CloseEvent() constructor

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

The CloseEvent() constructor creates a new CloseEvent object.

Syntax

js
new CloseEvent(type)
new CloseEvent(type, options)

Parameters

type

A string with the name of the event. It is case-sensitive and browsers always set it to close.

options Optional

An object that, in addition of the properties defined in Event(), has the following properties:

wasClean Optional

A boolean value indicating if the connection has been closed cleanly or not. It defaults to false.

code Optional

An integer representing the connection close code sent by the server. It defaults to 0.

reason Optional

A string containing a human-readable reason describing why the server closed the connection. It defaults to ''

Return value

A new CloseEvent object.

Specifications

Specification
WebSockets Standard
# dom-closeevent-closeevent

Browser compatibility

BCD tables only load in the browser

See also

  • CloseEvent, the interface of the objects it constructs.