The WebSocket.readyState
read-only property returns the current state of the WebSocket
connection.
WebSocket.readyState
Value
One of the following unsigned short
values:
Value | State | Description |
---|---|---|
0 |
CONNECTING |
Socket has been created. The connection is not yet open. |
1 |
OPEN |
The connection is open and ready to communicate. |
2 |
CLOSING |
The connection is in the process of closing. |
3 |
CLOSED |
The connection is closed or couldn't be opened. |
Specifications
Specification |
---|
WebSockets Standard # ref-for-dom-websocket-readystate① |
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 |
4
|
12
|
7
|
10
|
12.1
|
5
|
4.4
|
18
|
7
|
12.1
|
4.2
|
1.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/readyState