Javascript interview questions part 20
Javascript interview questions part 20
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Total Questions: 20
1. What does the NamedNodeMap object represent in the HTML DOM?
Correct Answer is : All of the mentioned
2. What is the purpose of the Attr object in the HTML DOM?
Correct Answer is : HTML Attribute
3. What is the work of the form control elements in the HTML DOM?
Correct Answer is : User Interface elements
4. How are the objects organized in the HTML DOM?
Correct Answer is : Hierarchy
5. Which of the following is a type of HTML DOM?
Correct Answer is : All of the mentioned
6. What is the purpose of the Legacy DOM ?
Correct Answer is : Allows access to few keys and elements
7. Which object is the top of the hierarchy?
Correct Answer is : Window Object
8. Which side of image map can be created using JavaScript?
Correct Answer is : Client side
9. Which is the attribute used to enable the Client-side image map?
Correct Answer is : usemap
10. Which are the special tags used for image mapping?
Correct Answer is : map and area
11. Which is the element that follows the use of “img”?
Correct Answer is : map
12. What is the purpose of the area element?
Correct Answer is : Shape and coordinates of the hotspot
13. Which of the following is not a navigator property?
Correct Answer is : all of the mentioned
14. What is the purpose of the platform[] property in a navigator?
Correct Answer is : Platform where the browser was compiled
15. What is the purpose of the preference method in a navigator?
Correct Answer is : Set Netscape preference
16. Which of the following is not a navigator method?
Correct Answer is : preference
17. What is the purpose of the userAgent property?
Correct Answer is : Identifying the client
18. How many properties does a prototype object have?
Correct Answer is : 7
19. Which of the following does not serialize the undefined values or objects within an object?
Correct Answer is : JSON.stringify
20. How many properties are there in the interface PerformanceTiming?
Correct Answer is : 21
