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Welcome to the Performance Measures in JavaScript MCQs Page

Dive deep into the fascinating world of Performance Measures in JavaScript with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Performance Measures in JavaScript, a crucial aspect of JavaScript. In this section, you will encounter a diverse range of MCQs that cover various aspects of Performance Measures in JavaScript, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within JavaScript.

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Check out the MCQs below to embark on an enriching journey through Performance Measures in JavaScript. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of JavaScript.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Performance Measures in JavaScript. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Performance Measures in JavaScript MCQs | Page 3 of 7

Q21.
Firebug can be used to inspect
Discuss
Answer: (d).All of the mentioned
Discuss
Answer: (c).Both Track cookies and sessions
Q23.
What are the goals for using Firebug?
Discuss
Answer: (a).Performance
Q24.
Which of the following is not a feature of the User Interface?
Discuss
Answer: (c).Fixed Side Panel
Q25.
What is the default value of the property overrideConsole
Discuss
Answer: (b).true
Q26.
Which of the following property(s) has a default value as false?
Discuss
Answer: (c).disableXHRListener
Q27.
Which of the following action is possible in Firebug when used as a JavaScript Debugger and Profiler?
Discuss
Answer: (c).Find Scripts easily & also Pause execution in any line
Q28.
How does PhantonJS use YSlow?
Discuss
Answer: (d).Command Line Script
Q29.
What are the two output formats YSlow uses?
Discuss
Answer: (a).TAP, JUnit
Q30.
Initially, YSlow was an extension of which browser?
Discuss
Answer: (b).Firefox
Page 3 of 7

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