WebSocket.readyState
The WebSocket.readyState read-only property returns the current state of the WebSocket connection.
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 |
|---|
| HTML Standard (HTML) # dom-websocket-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 |
4 |
12 |
7 |
10 |
12.1 |
5 |
≤37 |
18 |
7 |
12.1 |
4.2 |
1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/readyState