Errata


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Submit your own errata for this product.


The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.


Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page xii
bullet item 2, line 3: "ISO-10262" should read "ISO-16262"

Anonymous  Dec 1998
Printed Page xiv
2nd paragraph, last sentence

Removed the end of the last sentence, which read:

"...through his web site at
http://www.mpg-ana.uni-potsdam.de/local/js/."

Anonymous  Jun 2000
Printed Page xiii


ftp://ftp.oreilly.com/pub/examples/nutshell/javascript

now reads:

http://www.oreilly.com/catalog/9781565923928/example/js3examples/

Anonymous  Aug 2000
Printed Page 3
para. -2, line 4: "ISO-10262" should read "ISO-16262"

Anonymous  Dec 1998
Printed Page 3
3rd paragraph under "Versions of JavaScript",

changed
"International Standards Organization"
to
"International Organization for Standardization (ISO)"

Anonymous  Mar 2000
Printed Page 9
top


"click on a image"

should read

"click on an image"

Anonymous 
Printed Page 18
9th line of code

added a semicolon to the end of line; now reads:

document.loandata.total.value = round(monthly * payments);

Anonymous  Mar 2000
Printed Page 21

Lines 3-4 of the first sample script in section 1.8 now reads:

"...
for (i=0, j=1, k=0, fib =0; i<50; i++, fib=j+k, k=fib){
document.write ( "Fibonacci (" + i + ") = " + fib);
..."

Anonymous  Aug 1999
Printed Page 23
line -3: changed the URL for the Netscape debugger to

http://developer.netscape.com/software/jsdebug.html

Anonymous  Sep 1998
Printed Page 23
http://developer.netscape.com/products/jsdebug

has changed to:

http://developer.netscape.com/software/jsde.html

and:

http://www.microsoft.com/scripting/debugger/

has changed to:

http://msdn.microsoft.com/scripting/debugger/

Anonymous  Dec 1998
Printed Page 29
In the fifth paragraph

"++ and - postfix operators"

now reads:

"++ and -- postfix operators."

Anonymous  May 1999
Printed Page 32
The words "false", "null", and "true" have been added to

Table 2-1, and removed from Table 2-3.

Anonymous  May 1999
Printed Page 35
Added the following to the end of the 2nd paragraph:

(just before section 3.1.1):

Note that any numeric literal can be preceeded by a - sign
to make the number negative. Technically, however, - is the
unary negation operator, not part of the numeric literal
syntax.

Anonymous  Mar 2000
Printed Page 35
1st paragraph under 3.1.1 Integer Literals

Changed the end of the first sentence from:

"... that do not begin with the digit zero, or as the digit zero by itself."

to:

"... that do not begin with the digit zero, except that the digit zero by
itself is a Base-10 integer that represents zero."

Anonymous  Jun 2000
Printed Page 37
Table 3-1

Changed the meaning for Number.MIN_VALUE to:

"Smallest (closest to zero) representable value"

Anonymous  Mar 2000
Printed Page 49
A footnote has been added after "For example:", the 3rd line of

text on this page. It reads:

This code does not work properly if the year of
xmas is 1999, as explained in the reference section
descriptions of Date.getYear() and Date.setYear().
In JavaScript 1.2, simply replace these deprecated
Date methods with the Y2K-compliant getFullYear() and
setFullYear().

Anonymous  May 1999
Printed Page 75

The third example line of code read:

Result is 12.

It now reads:

Result is "12".

Anonymous  May 1999
Printed Page 75

The 3rd line of code used to read:

"1" + 2 // Concatenation; 2 is converted to "2". Result is 12.

It now reads:

"1" + 2 // Concatenation; 2 is converted to "2". Result is "12".

Anonymous  Aug 1999
Printed Page 77
Section 5.8, the section now begins

The bitwise operators require numeric arguments. They internally
coerce these numbers from their default floating-point representation
into a 32-bit integer representation. With Navigator 2 and 3, if
the operands do not fit in a 32-bit integer representation, the
operators return NaN. In ECMAScript and JavaScript 1.2, however,
these operators simply coerce their operands to 32-bit integers,
even if it results in lost data.

Anonymous  May 1999
Printed Page 89
3rd chunk of code

Added a ; to the end of line 3 to read:

if (!username) username = "John Doe";

Anonymous  Mar 2000
Printed Page 94
1st code block

Added a colon to the end of the third line, so that it reads:

case "hello":

Anonymous  Jun 2000
Printed Page 127
Example after 2nd paragraph, line 7

email: homer@simpsons.com
now reads:
email: "homer@simpsons.com"

Anonymous  Mar 2000
Printed Page 135
Figure 8-1 showed value for pi as 3.1459.

It now reads: 3.14159.

Anonymous  May 1999
Printed Page 170
2nd to last paragraph

Changed the last sentence from:

For example, use $ instead of 44.

to:
For example, use 44 instead of 44.

Anonymous  Jun 2000
Printed Page 177
In the Regular Expression Chapter (Ch. 10), the first example

read:

var pattern = "/java/i";

It now reads:

var pattern = /java/i;

Anonymous  May 1999
Printed Page 178
1st paragraph

The first sentence was changed to read:

In Navigator 4, there is one quirky...

Anonymous  Jul 2001
Printed Page 190
At the beginning of the second comment block

Used to read:

// Finally, we'll examine comparison by value.

Now reads:

// Finally, we'll examine comparison by reference.

Anonymous  Jan 2000
Printed Page 216
1st sentence under section 12.2.2.1,

Deleted "and Internet Explorer 4", so it now starts "In Navigator 4, ..."

Anonymous  Mar 2000
Printed Page 230
Insert a new list item after "moveBy(), moveTo()

open()
Open a new window.

Anonymous 
Printed Page 241

The first line of code read:

var w= window.open ("smallwin.html", "smallwin",
"width=400,height=350,status=yes,resizeable=yes");

It now reads:

var w= window.open ("smallwin.html", "smallwin",
"width=400,height=350,status=yes,resizable=yes");

Anonymous  May 1999
Printed Page 244
Code: Line 3 from bottom

Changed the line from:

<INPUT TYPE=button VALUE="Stop"
to:
<INPUT TYPE="button" VALUE="Stop"

Anonymous  Jun 2000
Printed Page 265
next-to-last line

The "self = null;" line of code was removed and replaced with:

var err = no_such_property; // Error: "no_such_property is not defined"

Anonymous  Jul 2001
Printed Page 288
3rd line of code

did read:
document.b1.onclick = ...
now reads:
document.forms[0].b1.onclick = ...

Anonymous  Mar 2000
Printed Page 313
Example 16-2

The lines

// If the element has a "numeric" property defined, verify that
// it is a number, but don't check its range.

were inserted before

// Put together error messages for fields that are wrong.

Anonymous  Aug 2000
Printed Page 313
4th line of code

The code was changed to read:

// Also, if any elements have a "numeric", "min", or "max" property defined,

Anonymous  Jul 2001
Printed Page 326
2nd paragraph, 1st sentence

Used to read:

This is a long and moderately complex example that
you may find useful in your own DHMTL programs.

Now reads:

This is a long and moderately complex example that
you may find useful in your own DHTML programs.

Anonymous  Jan 2000
Printed Page 328
INFO

Netscape Communicator 4.x has a known bug in that reloading a document does
not always reload all objects in that document, espcially Layer objects.

The upshot is that in the Netscape implementation, the value of "this.layer"
may be null or undefined. In this case, using any of the defined functions in
the example (such as "getX") attempt to de-reference an undefined (or null)
value, which causes Netscape Communicator to core-dump (or whatever this is
called on windows).

As this is a popular browser, and this is an important example, I suggest that
the author should find a work-around, either recreate a Layer object (the
quickest fix but with ugly results), or force a page reload (a slower method
but will always work properly).

Anonymous 
Printed Page 328
Example 17-4, line 10: "this.layer.right" changed to

"this.layer.top"

Anonymous  Jul 1998
Printed Page 330
Example 17-4, line -7: "this.style.pixelRight" changed to

"this.style.pixelTop"

Anonymous  Jul 1998
Printed Page 335
first complete paragraph

"Once the expiration date has past..."

"past" should be "passed".

Anonymous 
Printed Page 335
Last line

Changed "acme.com" to ".acme.com"

Anonymous  Jun 2000
Printed Page 390
section 21.6, the e-mail address

http://developer.netscape.com/software/signedobj/

is not exactly where you can find the signtool program. It can be found
at this URL:

http://developer.netscape.com/software/signedobj/jarpack.html

Anonymous  May 1999
Printed Page 428
Under Array.join()

In "Arguments", changed "the empty string" to "a comma"
in the last sentence.

Anonymous  Mar 2000
Printed Page 449
first code block:

Change second line to:

document.write('Today is: ' + d.toLocaleString()); // and print it out.

Anonymous 
Printed Page 453
First Paragraph

Removed first three lines of prose ("getTimezoneOffset" and following
paragraph.)

Anonymous  Aug 2000
Printed Page 491
Under eval()

In "Description," added the following to the end of the
2nd paragraph:

Note that if you pass an object to eval(), it converts the object
to a string primitive and returns that string without evaluating it.
Thus, if you pass a String object rather than a primitive string value,
eval() does not evaluate the string as you might expect.

Anonymous  Mar 2000
Printed Page 509
INFO

On this page, the author discusses the "form.action" property. I have found
through testing that for the POST method of form submission to work, the
"form.method" property must also be explicitly set, even if it is set within
the original <FORM> tag. There seems to be no problem if the form uses the
GET method, but when I tried a "POST", all I got were 405 errors in both
Netscape (4.6) & IE (4.01).

Setting the "method" property explicitly eliminated the problem.

Anonymous 
Printed Page 512
The "See Also" section of the "Form.onreset" reference section, used

to read:

"Form.onsubmit, Form.reset(), Chapter 15"

It now reads:

"Form.onsubmit, Form.reset(), Chapter 16"

Anonymous  Aug 1999
Printed Page 512
The "See Also" section of the "Form.onsubmit" reference section, used

to read:

"Form.submit(), Chapter 15"

It now reads:

"Form.submit(), Chapter 16"

Anonymous  Aug 1999
Printed Page 544
In the name section of image properties, sentence 2 currently

read:

"When an image is given an name with the ..."

It now reads:

"When an image is given a name with the ..."

Anonymous  May 1999
Printed Page 563
2nd paragraph under Description of isNaN()

In the last sentence, changed "isNanN()" to "isNaN()"

Anonymous  Jun 2000
Printed Page 579
layer.clip.right description

Under the description for "Layer.clip.right," changed "Layer.right" to
"Layer.left."

Anonymous  Aug 2000
Printed Page 606
under Math.atan2()

Changed from:

Synopsis
Math.atan2(x, y)

Arguments
x The X-coordinate of the point.
y The Y-coordinate of the point.

to:

Synopsis
Math.atan2(y, x)

Arguments
y The Y-coordinate of the point.
x The X-coordinate of the point.

Added this paragraph to the end of the "Description" section:

Note the unusual order of the arguments to this function. The
Y-coordinate (the "rise") is passed before the X-coordinate
(the "run").

Anonymous  Jun 2000
Printed Page 646

The line 10 from bottom of page now reads:

document.write(navigator.plugins["Shockwave"] ?

Ie, replace the () brackets with [] around the word "Shockwave".

Anonymous  May 1999
Printed Page 687
next to last line

Specified /s+/ with a lower-case 's', as in the example on the following
page.

Anonymous  Aug 2000
Printed Page 689
the Synopsis changed to

string.substr(start, length)

("substr" is in constant-width font, and "string", "start", and
"length" are all in constant-width italic font.)

Anonymous  Jul 1998
Printed Page 701
Textarea entry under HTML Syntax

Deleted the code line that read:

[ WRAP=off|virtual|physical ] How word wrapping is handled

INDEX:.
Changed the entry for alert() from:

alert(), 9, 22, 231-233, 709

to:

alert(), 9-10, 22, 231-233, 709

Anonymous  Jun 2000