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Javascript - CS - Sockets
Javascript - CS - Animation
Javascript - CS - Array and Function
Javascript - CS - Basic and Variables
Javascript - CS - Classes and Modules
Javascript - CS - Performance Measures
Javascript - CS - Caching and Debugging
Javascript - CS - Graphics and Rendering
Javascript - CS - Parsing, Benchmarking and Logging
Javascript - CS - Invocation and Performance Navigation
Javascript - CS - Server Side and Client Side Scripting
Javascript - CS - Document Object Model and Event Handling
  1. How many default number methods are available in JavaScript?

    2. A.

     5
    B.

     6
    C.

     7
    D.

     8

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  2. What is an observer effect?

    3. A.

     Observing influences outcome
    B.

     Observing never influences outcome
    C.

     Obversing and outcome are independent
    D.

     None of the mentioned

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  3. Which of the following are ways to benchmark code?

    4. A.

     Timing the code
    B.

     Calculating the number of operations performed
    C.

     Timing the code & Calculating the number of operations performed
    D.

     None of the mentioned

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  4. How to calculate the run time of a code?

    5. A.

     Start time – End time
    B.

     End time – Start time
    C.

     Start time/ End time
    D.

     Start time * End time

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  5. According to the workflow of a runtime logging, what happens after calculating the run time?

    6. A.

     Display to screen
    B.

     Log to server
    C.

     Either Display to screen or Log to server
    D.

     None of the mentioned

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  6. Which of the following object is used to post the data to an external process, say savePerfData?

    7. A.

     XML
    B.

     XBT
    C.

     XHR
    D.

     None of the mentioned

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  7. Where does the external process save the result of the test?

    8. A.

     Normal file
    B.

     Flat file
    C.

     Folder
    D.

     None of the mentioned

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  8. Which function is used to start the time logging?

    9. A.

     startTimeLogging()
    B.

     start()
    C.

     Loggingstart()
    D.

     startLogging()

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  9. Which of the following attribute of form tag is not set by using document object in JavaScript?

    10. A.

     Target
    B.

     Enctype
    C.

     Action
    D.

     None of the mentioned

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  10. What type of scooping is present in JavaScript?

    11. A.

     Lexical
    B.

     Literal
    C.

     Both Lexical and Literal
    D.

     None of the mentioned

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