The readyState read-only property of the EventSource interface returns a number representing the state of the connection.
EventSource.readyState
Value
A number representing the state of the connection. Possible values are:
-
0— connecting -
1— open -
2— closed
Examples
var evtSource = new EventSource('sse.php'); console.log(evtSource.readyState);
Note: You can find a full example on GitHub — see Simple SSE demo using PHP.
Specifications
| Specification |
|---|
| HTML Standard # dom-eventsource-readystate-dev |
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
readyState |
6
|
79
|
6
|
No
|
12
|
5
|
4.4
|
18
|
45
|
12
|
5
|
1.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/EventSource/readyState
