WebSocket: readyState property

Available in workers

The WebSocket.readyState read-only property returns the current state of the WebSocket connection.

Value

A number which is one of the four possible state constants defined on the WebSocket interface:

• WebSocket.CONNECTING (0)
  • : Socket has been created. The connection is not yet open.
• WebSocket.OPEN (1)
  • : The connection is open and ready to communicate.
• WebSocket.CLOSING (2)
  • : The connection is in the process of closing.
• WebSocket.CLOSED (3)
  • : The connection is closed or couldn’t be opened.

Specifications

Browser compatibility