09.29.txt 09/29/2005 CISC103 Lecture Notes

Chapter 7 and Chapter 8 in the Pink Book (Deitel/Deitel 3e)

Examples are online.. can be found at http://www.deitel.com


welcome.html:

  We said a few things about the attribute xmlns on the html tag.
  

welcome2.html from Chapter 7:

  Note the use of the \"

"  " are used to "delimit" strings in JavaScript

delimit is a Computer Science word "mark the beginning
and the end of something"

If you want to really print a " you have to put a \ in front of it.


Another alternative is to use a single quote... HTML allows the use
of single quotes for attributes:


So, it is possible to avoid having to use the \ if you just alternate
between using single quotes ' and " for your JavaScript write or writeln.

If you leave off the quotes on the outside, like this:
You'll get a JavaScript error..


         document.write( <h1 style = "color: pink"> ); 

If you leave off the quotes on the value of the attribute,
the attribute gets ignored:
 

        document.write( "<h1 style = color: brown>" ); 
 

   Forward slashes:
          http://
	  Unix directory names: /home/usra/d9/55560  is my home directory on
             copland.udel.edu
          // JavaScript comments
          battingAverage = hits / atBats;  // the / here means "divide"

   Backslashes: 
          C:\WINDOWS    (path names, directory names under windows)
          \n \" \\      to get newline, " or a backslash as part of a string
                         in JavaScript