What is the usage of the keyword ?? in R?
A. Help window
B. Extensive search
C. Error correction
D. Error detection
Answer: Option B
Solution(By Examveda Team)
?? (keyword) is generally used for a more extensive search when compared to the keyword ?.This Question Belongs to Javascript >> Sockets
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What does the value 2 of the WebSocket attribute Socket.readyState indicate?
A. Closed connection
B. Handshake connection
C. Unestablished connection
D. Established connection and communication is possible
Which method is used to close the WebSocket?
A. Socket.flush()
B. Socket.close()
C. Socket.Close()
D. Socket.dispose()
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