Interview Questions

1. What does $("div") will select?

Options:

a. It select first div element.

b. It select all div elements

c. It doesn't select div elements

d. None

Reveal Answer

2. What does $("div.parent") will select?

Options:

a. A. All the div element with parent class

b. All the div element with child class

c. All the div element with parent and child class

d. None

Reveal Answer

3. What are the basic selectors in jQuery?

Options:

a. CSS Name

b. Tag Name

c. DOM hierarchy

d. All

Reveal Answer

4. What is called chaining

Options:

a. connect with functions in a selector

b. connect with events in a selector

c. connect with functions and events in a selector

d. None

Reveal Answer

5. .......accepts a call back function as its argument and invokes that function once for each element of the jQuery object.

Options:

a. is()

b. index()

c. each()

d. map()

Reveal Answer

6. Which jQuery method is used to hide selected elements.

Options:

a. hidden()

b. hide()

c. visible()

d. Display()

Reveal Answer

7. which statement is true

Options:

a. To use jQuery, you must buy the jQuery library at www.jQuery.com

b. To use jQuery, you do not have to do anything. Most browsers(Internet Explorer ,Chrome, Firefox and Opera) have the jQuery built in the browser

c. To use jQuery, you can refer to a hosted jQuery library at Google

d. All

Reveal Answer

8. .$('#temp').action() Which type of selector is used in the above jQuery syntax?

Options:

a. .id selector

b. .class selector

c. name selector

d. .value selector

Reveal Answer

9. .$(function(){}); what does this piece of jQuery do?

Options:

a. This is a shorter version for $(document).ready.(function(){});

b. This is to test if jQuery can be loaded again.

c. This is to test if jQuery has completed execution

d. This is to create a method in jQuery

Reveal Answer

10. In order to loop over all elements in jQuery object, you can call the........method instead of writing a for loop.

Options:

a. Array.map()

b. index()

c. each()

d. value()

Reveal Answer

11. how to select all elements using jQuery?

Options:

a. $('Id')

b. $('class')

c. $('*')

d. None

Reveal Answer

12. How to hides the current element

Options:

a. $(this).hide()

b. $(p).hide()

c. $(p.test).hide()

d. $(#test).hide()

Reveal Answer

13. How to write tag and class selector

Options:

a. $("div.main")

b. $("table #data")

c. $("div #main")

d. None

Reveal Answer

14. Which is not a jQuery method

Options:

a. empty()

b. remove()

c. detach()

d. None

Reveal Answer

15. $.foo() is equivalent to

Options:

a. javascript.foo()

b. document.foo()

c. jQuery.foo()

d. None of the above

Reveal Answer

16. var ps=$("p"); ps will be...

Options:

a. A. A linked list

b. A hash or dictionary

c. A jQuery obj

d. An array

Reveal Answer

17. When do you use the $(this) code?

Options:

a. When an HTML element will reference its own action.

b. When an HTML element will reference its parent element's action

c. When an HTML element will reference the entire document

d. None of the above

Reveal Answer

18. What does the function $(".selector") return?

Options:

a. An array

b. A node list

c. A new jQuery object

d. none of the above

Reveal Answer

Interview Questions and Answer

1. What does $("div") will select?

2. What does $("div.parent") will select?

3. What are the basic selectors in jQuery?

4. What is called chaining

5. .......accepts a call back function as its argument and invokes that function once for each element of the jQuery object.

6. Which jQuery method is used to hide selected elements.

7. which statement is true

8. .$('#temp').action() Which type of selector is used in the above jQuery syntax?

9. .$(function(){}); what does this piece of jQuery do?

10. In order to loop over all elements in jQuery object, you can call the........method instead of writing a for loop.

11. how to select all elements using jQuery?

12. How to hides the current element

13. How to write tag and class selector

14. Which is not a jQuery method

15. $.foo() is equivalent to

16. var ps=$("p"); ps will be...

17. When do you use the $(this) code?

18. What does the function $(".selector") return?

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