Question: 1
A developer is setting up a new Node.js server with a client library that is built using events and callbacks.
The library:
* Will establish a web socket connection and handle receipt of messages to the server
* Will be imported with require, and made available with a variable called ws.
The developer also wants to add error logging if a connection fails.
Given this information, which code segment show the correct way to set up a client two events that listen at execution time?
A)
B)
C)
D)
Question: 2
Refer to the code snippet:
What is the value of array after the code executes?
A 1, 2, 3, 4, 5, 4, 4
B 1, 2, 3, 4, 4, 5, 4
C 1, 2, 3, 5
D 1, 2, 3, 4, 5, 4
Answer : C
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Question: 3
Refer to the HTML below:
The current status of an order: < span> id='' status '> In progress < /span> < /p>
Which JavaScript Statement changes the text 'In Progress' to Completed'?
Question: 4
A developer wants to leverage a module to print a price in pretty format, and has imported a method as shown below:
Import printPrice from '/path/PrincePrettyPrint. Js';
Based on the code, what must be true about the printPrice function of the PricePrettyPrint modules for this import to work?
Question: 5
What are two unique feature of function defined with a fat arror as compared to normal functional definition?
Choose 2 answers
