CloseEvent: wasClean property
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.
The wasClean read-only property of the CloseEvent interface returns true if the connection closed cleanly.
Value
A boolean value. True if the connection closed cleanly, false otherwise.
Examples
The following example prints the value of wasClean to the console.
js
WebSocket.onclose = (event) => {
console.log(event.wasClean);
};
Specifications
| Specification |
|---|
| WebSockets Standard # ref-for-dom-closeevent-wasclean② |
Browser compatibility
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