Q1 What is true of the following code $( h2 ) next() toggle() a The next siblings of all h2 elements will become hidden or shown with the alternate clicks b The h2 heading, which is right after the last h2 element on the page, will become hidden or shown with the alternate clicks c The statement is incorrect because you cannot use two methods , one after another d All h2 elements and the next siblings right after them will will become hidden or shown with the alternate clicks Question 2 When will the function shipCost() be executed for the first time window onload function() $( ship ) onclick shipCost() a When the user clicks on it b It will never be executed because the code is not correct c When the page loads d When the user clicks or double clicks on it Question 3 To include the jQuery library in a web page, you (Check all that applies) a don't have to reference it as all modern browsers can recognize a jQuery code b can download the jQuery library and reference it with the HTML tag c can reference it from a CDN (Content Delivery Network) with the HTML tag Question 4 When creating a timer an interval is specified in a tenths of a second b seconds c milliseconds d minutes Question 5 Explain the purpose of using preventDefault() as in the code below $( a ) click(function(evt) evt preventDefault() More code Your answer Question 6 Explain the purpose of so called preloading images Your answer Question 7 What type of error a browser's Developer's Tools can't help you find a A browser's Developer's Tools can help you find any type of errors logical, syntax, run time b syntax c logical Question 8 jQuery code is supposed to work in a the latest version of Internet Explorer and Firefox only b only browsers that support it c Internet Explorer only d all the browsers Question 9 Rewrite the code below using JavaScript only hidden display none $(document) ready(function() $( p ) click(function() $(this) hide() ) ) paragraph1 paragraph2 paragraph3 Your answer Question 10 jQuery is a a programming language similar to JavaScript b a JavaScript library c an extension of the Chrome browser d all of the above Question 11 Which method of the Document interface retrieves an array of all the h1 headings a getElementsByName( header ) b getElementsByTagName( h1 ) c getElementsByTagName(h1) d getElementsById( h1 heading ) Question 12 Rewrite the code using operator instead of if statement window onload function() var letters A , B , C var counter 0 var timer setInterval( function() counter counter 1 if (counter letters length) counter 0 document getElementById( demo ) value letters counter ,1000) Your answer Question 13 Change the code below so it does the following The text should change from no mouse to mouse is here when mouse enters the paragraph and return the text back to no mouse when mouse leaves $(document) ready(function() $( p ) hover(function() $(this) text( mouse is here ) ) ) no mouse no mouse no mouse Your answer Question 14 What is the difference between setTimeout and setInterval methods Your answer Question 15 The following code var message function(display error) alert( Error display error) a creates a function named display error b creates a function and stores it in a variable named message c creates a function named message d creates a function and stores it in a variable named display error Question 16 What does this keyword refer to in the code below My Heading1 AAA My Heading2 BBB $( faqs h2 ) click( function() $( this ) toggleClass( minus ) $( this ) next() toggle() ) a The element with the id faqs that has an h2 heading as a descendant b The anonymous function for the click event method c The collection of all h2 headings on the page d The current h2 heading Question 17 Suppose you have the following code in your JavaScript application var $ function(id) return document getElementById(id) To access the paragraph TEST you would use the following JavaScript code a $( test ) b $( p test ) c $( test ) d $( p test )

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Q1 What is true of the following code? $(h2).next().toggle(); a The next siblings of all h2 elements will become hidden or shown with the alternate

What is true of the following code?

$("h2").next().toggle();

a	The next siblings of all h2 elements will become hidden or shown with the alternate clicks.
b	The h2 heading, which is right after the last h2 element on the page, will become hidden or shown with the alternate clicks.
c	The statement is incorrect because you cannot use two methods , one after another.
d	All h2 elements and the next siblings right after them will will become hidden or shown with the alternate clicks.

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Question 2

When will the function shipCost() be executed for the first time?

window.onload = function() {

$("ship").onclick = shipCost();

};

a	When the user clicks on it.
b	It will never be executed because the code is not correct
c	When the page loads
d	When the user clicks or double clicks on it.

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Question 3

To include the jQuery library in a web page, you _____________. (Check all that applies)

don't have to reference it as all modern browsers can recognize a jQuery code

can download the jQuery library and reference it with the HTML

paragraph1

paragraph2

paragraph3

Your answer:

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Question 10

jQuery is ________

a	a programming language similar to JavaScript
b	a JavaScript library
c	an extension of the Chrome browser
d	all of the above

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Question 11

Which method of the Document interface retrieves an array of all the h1 headings?

a	getElementsByName("header")
b	getElementsByTagName("h1")
c	getElementsByTagName(h1)
d	getElementsById("h1-heading")

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Question 12

Rewrite the code using % operator instead of if statement .

Your answer:

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Question 13

Change the code below so it does the following :

The text should change from "no mouse" to "mouse is here" when mouse enters the paragraph and return the text back to "no mouse" when mouse leaves.

no mouse

Your answer:

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Question 14

What is the difference between setTimeout and setInterval methods ?

Your answer:

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Question 15

The following code:

var message = function(display_error) {

alert("Error: " + display_error);

}

a	creates a function named display_error
b	creates a function and stores it in a variable named message
c	creates a function named message
d	creates a function and stores it in a variable named display_error

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Question 16

What does this keyword refer to in the code below?

 My Heading1
 AAA
 My Heading2
 BBB

a	The element with the id faqs that has an h2 heading as a descendant
b	The anonymous function for the click event method
c	The collection of all h2 headings on the page
d	The current h2 heading