Q. What is an observer effect?

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

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

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

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

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

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

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

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Q. What type of scooping is present in JavaScript?

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Q. Which function is used to stop the time logging?

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Q. The lexical scooping in JavaScript is based on which of the following?

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Q. What is the return data type of the property accept that belongs to the Input element?

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Q. What is the purpose of the property width belonging to the ImageData element?

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Q. What is the purpose of the adoptNode() method?

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Q. What is the function of the method importNode()?

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Q. How can you create a node for comment in JavaScript?

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Q. How can you dispatch a synthetic event object?

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Q. How do you specifically execute a command in JavaScript?

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Q. What is necessary when we need to create a new field in craft?

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Q. What does the getInputHtml() return?

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