CloseEvent: wasClean property

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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