The WebSocket.onclose property returns the event listener to be called when the WebSocket connection's readyState changes to CLOSED. The listener receives a CloseEvent named "close".
aWebSocket.onclose = function(event) {
console.log("WebSocket is closed now.");
}; An EventListener.
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'WebSocket: onclose' in that specification. | Living Standard | Initial definition |
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https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/onclose