Javascript interview questions part 12
Javascript interview questions part 12
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Total Questions: 20
1. Consider the following code snippet o.m(x,y); Which is an equivalent code for the above code snippet?
Correct Answer is : o["m"](x,y);
2. DOM Level 3 Events standardizes which of the following events?
Correct Answer is : focusin and focusout
3. Which of the following are the unnecessary events currently?
Correct Answer is : All of the mentioned
4. Which object is passed as the argument to handlers for keydown, keyup, and keypress events?
Correct Answer is : KeyboardEvent
5. Which among these is a property that reports rotation of mouse wheel axes?
Correct Answer is : deltaX
6. Which of the following property specifies the string of text that was entered?
Correct Answer is : data
7. Which of the following is defined by the specification?
Correct Answer is : inputMethod
8. Which two events will have the generated text for key events?
Correct Answer is : key and char
9. Which of the following are the drag and drop events?
Correct Answer is : both drop and dragstart
10. Which property holds a DataTransfer object that contains information about the data being transferred and the formats in which it is available?
Correct Answer is : dataTransfer
11. Which API allows scripts in a document from one server to exchange messages with scripts?
Correct Answer is : Cross-Document Messaging API
12. Which of the following is a way of embedding Client-side JavaScript code within HTML documents?
Correct Answer is : External file specified by the src attribute of a “script” tag
13. When does JavaScript code appear inline within an HTML file?
Correct Answer is : Between the “script” tag
14. Which character in JavaScript code will be interpreted as XML markup?
Correct Answer is : &
15. Which is the root element in a HTML document?
Correct Answer is : HTML
16. What is the code for getting the current time?
Correct Answer is : var now = new Date();
17. What is the code to start displaying the time when document loads?
Correct Answer is : window.onload = displayTime;
18. One of the main advantage of using src attribute is
Correct Answer is : It simplifies the HTML files
19. What will be done if more than one page requires a file of JavaScript code?
Correct Answer is : Retrives from the browser cache
20. What is the default value of the type attribute?
Correct Answer is : text/javascript
