Errata

Under the "Adding support for WebVTT to IIS Express", the command to set the config in IIS reads as follows:

appcmd set config /section:staticContent /+[fileExtension='vtt',mimeType='text/vtt']

But in the base IIS config, extensions start with a period, so the command should be :

appcmd set config /section:staticContent /+[fileExtension='.vtt',mimeType='text/vtt']

Note from the Author or Editor:
On page 442, locate the following command text:
appcmd set config /section:staticContent /+[fileExtension='vtt',mimeType='text/vtt']

and replace with the following:
appcmd set config /section:staticContent /+[fileExtension='.vtt',mimeType='text/vtt']

Step 7 suggests to add <br /> (break) after the Human Resources hyperlink but the code below the step adds <br /> (break) after Expense Reports hyperlink

Note from the Author or Editor:
On page 59, step 7 please change:
Add a <br /> element after the Human Resources hyperlink.

to the following:
Add a <br /> element after the Expense Reports hyperlink.

The pseudo class is named 'nth-child', but reference is made in the body to 'nthchild', without the hyphen. Similarly for nth-last-child laster on.

Note from the Author or Editor:
on page 149 locate the following:
li:nthchild(3)

and replace with:
li:nth-child(3)

also on page 149, locate the following:
li:nthlast-child(3)

and replace it with:
li:nth-last-child(3)

Extremely minor.

A more accurate value of PI is 3.14159265..., therefore PI to six decimal places is actually 3.141593. As a neater alternative, Math.PI is supported across all browsers.

Note from the Author or Editor:
No change needed here. It really is extremely minor if not picky.

The } to end the 'do' code block is missing before the 'while' statement.

The example is more generally flawed, which may confuse a reader learning the syntax by copying it. 'retries' is incorrectly named, as what is being counted are 'tries'. Also, if a user enters correct login information on their third attempt they will still be told they have had too many tries.

Note from the Author or Editor:
On page 85, locate the following code statement:
while(!authenticated() && retries < 3);

and add a right curly brace to the beginning as follows:
} while(!authenticated() && retries < 3);

The attribute used to reference an external JavaScript file is stated as being 'ref'. This should be 'src'. Thus:

<script type="text/javascript" src="/Scripts/MyCode.js"></script>

The Quick Check panel's answer is missing the 'type' attribute, which would be part of the proper syntax the question requires. It is not formatted as code, as per other examples in the book.

The question states the folder as being 'scripts', whilst the answer uses 'Scripts'. For cross-platform compatibility, the cases should match.

Note from the Author or Editor:
On page 38, there are 2 references to the <script> tag. Each use the ref attribute. Also, the first reference has type="text/javascript" which is optional but better to leave out. Please change ref to src so bother <script> tag are as follows:
<script src="/Scripts/MyCode.js"></script>

The closing tag </html> appears twice.

Note from the Author or Editor:
On page 23, locate step 16. Please remove the last </html> tag.

The objectives listed for Lesson 1 of Chapter 6 are actually the objectives for Chapter 7, Lesson 1.

Note from the Author or Editor:
On page 262, locate the following objectives:
Understand basic HTTP protocol actions.
Understand how data is sent to the server.

And replace with the following:
Understand basic object-oriented terminology.
Create JavaScript objects

The title used for this section is "Using the <abbv> element for abbreviations and acronyms" also in the example <abbv> is used.

There is no <abbv> tag in the HTML5 spec. The tag should be <abbr>.

See here also:
http://www.w3.org/html/wg/drafts/html/master/text-level-semantics.html#the-abbr-element

Note from the Author or Editor:
On page 214 and the top of page 215, locate all 7 instances of <abbv> and replace with <appr>. Also locate all 3 instances of </abbv> and replace with </abbr>

test "Initialize Test" contains lines to set the value of txtInput and txtResult to 0, this causes the test to pass without the correct code in the calculatorLibrary.js file

Note from the Author or Editor:
On page 132, locate step 40. Replace the following:
txtInput.value = '0';
txtResult.value = '0';

with:
txtInput.value = '';
txtResult.value = '';

In the definition of splice, the author states that that 'ham' and 'bacon' will be added to the variable 'mySlice', when the example below it references the variable 'mySplice'

Note from the Author or Editor:
On page 111, please search for the following:
mySplice

And replace with the following:
mySlice

On the first row, a missing ' at the end of media:

$('#media).on('play', function () { $('#play').html('Pause'); });

It should say:

$('#media').on('play', function () { $('#play').html('Pause'); });

Note from the Author or Editor:
On page 450, search for the following:
$(?#media)

and replace with $(?#media')

Number 25 has the following code shown:

function showMessageAsync(message) {
var coverPromise = displayCoverAsync();
var messagePromise = coverPromise.pipe(function () {
return showMessageContentAsync(message);
});
return messagePromise;

There is a missing curly bracket at the end, so the code should look like this instead:

function showMessageAsync(message) {
var coverPromise = displayCoverAsync();
var messagePromise = coverPromise.pipe(function () {
return showMessageContentAsync(message);
});
return messagePromise;
}

Note from the Author or Editor:
On Page 410, search for the following:
return messagePromise;

and add a closing curly brace on the next line as follows:
return messagePromise;
}

Number 11:
Add a folder to the Content project and, in the Content folder, add a default.css style sheet file.

Note:
The project has the name AnimationExample. I assume that it should say something like this instead:

Add a Content folder to the project and, in the Content folder, add a default.css style sheet file.

Or, maybe it should say something like this:

In the Solution Explorer window, right-click the AnimationExample project, choose Add, select New Folder, and name it Content. In the Content folder, add a default.css style sheet file.

Note from the Author or Editor:
On page 407, search for the following text:
Add a folder to the Content project and, in the Content folder, add a default.css style sheet file.

and replace with:

In the Solution Explorer window, right-click the AnimationExample project, choose Add, select New Folder, and name it Content. In the Content folder, add a default.css style sheet file.

In the example for the app.get, the third line is:

response.end('Hello ' + request.query.userName + '!<br />');

The third line should instead start with:

response.write('Hello...

In the next code example, where showing the completed app.js file, app.get is correct with response.write for the 'Hello'

Note from the Author or Editor:
On page 358, search for the following text:
response.end('Hello ' + request.query.userName + '!<br />');

and replace with:
response.write('Hello ' + request.query.userName + '!<br />');

The code reads:

:valid {
border :solid lime;
font-weight:normal;
}

For the 'border' property the space needs to be removed from before the ':'. To make it read:

:valid {
border:solid lime;
font-weight:normal;
}

Note from the Author or Editor:
On page 364, please locate:
border :solid lime;

And replace it with the following:
border:solid lime;

The code listing is as follows:

var car1 = new getVehicle(2000, 'Ford', 'Fusion');
var car2 = new getVehicle(2010, 'BMW', 'Z4');

The getVehicle is returning an object which can be used by car1 & car2. By using the 'new' keyword is in effect creating a copy of the object returned by getVehicle and then deleting the original object which is unnecessary and inefficient. This code listing should either be the following, or a description given as to why the 'new' keyword is there:

var car1 = getVehicle(2000, 'Ford', 'Fusion');
var car2 = getVehicle(2010, 'BMW', 'Z4');

Note from the Author or Editor:
On page 293, locate:
var car1 = new getVehicle(2000, 'Ford', 'Fusion');

var car2 = new getVehicle(2010, 'BMW', 'Z4');

And change to:
var car1 = getVehicle(2000, 'Ford', 'Fusion');

var car2 = getVehicle(2010, 'BMW', 'Z4');