Initiate a connection on a given socket.

Possible signatures:

• socket.connect(options[, connectListener])
• socket.connect(path[, connectListener]) for IPC connections.
• socket.connect(port[, host][, connectListener]) for TCP connections.
• Returns: net.Socket The socket itself.

This function is asynchronous. When the connection is established, the "connect" event will be emitted. If there is a problem connecting, instead of a "connect" event, an "error" event will be emitted with the error passed to the "error" listener. The last parameter connectListener, if supplied, will be added as a listener for the "connect" event once.

This function should only be used for reconnecting a socket after "close" has been emitted or otherwise it may lead to undefined behavior.