Question 1

True

Accepted Answer

T/FThe top-level object in the browser object model is the Window object, which represents a web browser window.

Question 2

false

Accepted Answer

T/FThe objects in the BOM for any given web page depend on the contents of the page.​

Question 3

false

Accepted Answer

T/FThe getElementsBySelector() method​ returns a collection of elements matching a specified selector.

Question 4

true

Accepted Answer

T/FInternet Explorer 8 does not support the textContent property.​

Question 5

True

Accepted Answer

T/Fnode attached with the appendChild() method is always added as the last child element of the parent element.​

Question 6

options

Accepted Answer

When you open a new web browser window, you can customize its appearance using the ____ argument of the window.open() method.

Question 7

focus()

Accepted Answer

In order to make a window the active window, you use the ____ method of the Window object.

Question 8

setTimeout();

Accepted Answer

The ____ method is used in JavaScript to execute code after a specific amount of time has elapsed.

Question 9

clearTimeout();

Accepted Answer

The ____ method is used to cancel a setTimeout() method before its code executes.

Question 10

setInterval()

Accepted Answer

The ____ method repeatedly executes the same code after being called only once.

Question 11

clearInterval()

Accepted Answer

The ____ method is used to clear a setInterval() method call.

Question 12

length

Accepted Answer

The History object contains a single property, the ____ property, which contains the specific number of documents that have been opened during the current browser session.

Question 13

location

Accepted Answer

The ____ object allows you to change to a new web page from within JavaScript code.

Question 14

Navigator

Accepted Answer

The ____ object is used to obtain information about the current web browser.

Question 15

getElementsByClassName()

Accepted Answer

Which method does NOT return a node list or HTML collection?​a.getElementById()b. ​getElementsByTagName()c. ​getElementsByClassName()d. ​getElementsByName()

Question 16

getElementsByTagName(h1)

Accepted Answer

Which method returns all h1 elements in a document?​

Question 17

querySelector(p figure img)

Accepted Answer

Which method returns all elements in a document that match the selector p figure img?​

Question 18

​fontFamily

Accepted Answer

Which is the correct way to reference the CSS font-family property in JavaScript when using dot notation?​

Question 19

document.getElementById(homeLink).href

Accepted Answer

Which is the correct way to reference the href attribute of the element with the id value homeLink?​

Question 20

createElement()

Accepted Answer

Which results in a node that exists independently of the DOM tree?​

Question 21

inserBefore()

Accepted Answer

Which method adds a node to a parent node before one or more existing child nodes?​

Question 22

the ​DOM tree

Accepted Answer

The DOM hierarchy is also known as ____.

Question 23

getElementsByClassName(first)

Accepted Answer

Which method returns the element created by the HTML tag pair

?

Question 24

querySelector()

Accepted Answer

Which method returns a single element?​

Question 25

document fragment​

Accepted Answer

A set of connected nodes that are not part of a document is known as a(n) ____.​

Question 26

window

Accepted Answer

The ____________________ object represents a web browser window.

Question 27

document object model

Accepted Answer

The Document object branch of the browser object model is represented by its own object model called the ______________________________.

Question 28

self

Accepted Answer

One way of referring to the Window object is by using the ____________________ property, which refers to the current Window object.

Question 29

textContent

Accepted Answer

For security reasons, you should use the ____________________ property when possible instead of the innerHTML property.​

Question 30

node

Accepted Answer

Each item in the DOM tree is known as a(n) ____________________.​

Question 31

the windoe object represents the browser window. It's related to the document object because the web page is diplayedin it. The window is the parent object of all other objects.

Accepted Answer

Explain the relationship between the Window object and the Document object.

Question 32

getElementsbyTagName(h2);getElementsByClassName(seciont);querySelector(h2 section);

Accepted Answer

The first h2 element in a web page is created with the following tag pair:

. Provide three different examples of code to reference this element using three different methods.

Question 33

inner HTML allows you to acces adn write HTML tags along with text, while text Content strips these out. Text conent strips out striclty the text and leaves out the code.

Accepted Answer

What is the difference between the content accessed by the textContent and innerHTML properties?

Question 34

reference an attribute of an elementdocument.getElementById(homelink)reference CSS propery of elementgetElementByID(logo:).style.fontFamily;

Accepted Answer

What is the difference in syntax between referencing a CSS property of an element and referencing an attribute of an element? Give an example of each.

Question 35

appendChild() is the most basic bitch of all of them. Adds node as a child of a parent node that is specified. Always appended after any existing childing nodes. Use insertBefore() when you need to place it in a specific place among existing bitches.

Accepted Answer

Name two ways to add a node to the DOM, and explain when you'd use each.

Question 36

through thigns like openWin whcih is created by the values specified in the windows.open() method.

Accepted Answer

How can you control a new window from the browser window that created it?

Question 37

SetTImeout () executes code after a specific amount of time has elapse. It's sister function is clearTimeout()The setInterval repeatedly executes code after an amount of time has passed. it's sister function is clearInterval.

Accepted Answer

Describe the differences between the setTimeout() and setInterval() methods, and specify the method you use to cancel each.

Question 38

No. The information is private. It's an essential security feature.

Accepted Answer

Can you use JavaScript access URLs contained in the History object? If yes, provide code to do so. If no, why not?

Question 39

Rarely because javascript implementations are standardized across the current versions of all major browsers. Browser can be challenging to get conclusive information. Developers instead use browser detection capabilities built into libraries.

Accepted Answer

Is the Navigator object commonly used in determining which type of browser a user is running? Why or why not?

Question 40

Assign values to the left and top options of the options argument. Subtract width of window from screen width and divide the remainder by two, and assign resut to left option. Same goes for vertical window. Subtract height of the window from screen height, divide remaining by two, and assign reult to top option.

Accepted Answer

How can you center a web browser window in the middle of the display area?

Javascript Chp. 5

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