31.
How many default number methods are available in JavaScript?

32.
What is an observer effect?

33.
Which of the following are ways to benchmark code?

34.
How to calculate the run time of a code?

35.
According to the workflow of a runtime logging, what happens after calculating the run time?

36.
Which of the following object is used to post the data to an external process, say savePerfData?

37.
Where does the external process save the result of the test?

38.
Which function is used to start the time logging?

39.
Which of the following attribute of form tag is not set by using document object in JavaScript?

40.
What type of scooping is present in JavaScript?