nested for structures

[MarkJ2]

I'd like to write a script that will read in an odd number to specify the number of rows of a diamond. If the user enters 5 the diamond will look like so:

*
***
*****
***
*

I know I will need nested for structures and output statements that print a single asterik, a single space or a single newline character, but I can't figure out the code.
The code for the initial prompt I understand.

Any help would be appreciated.

 

[anorakgirl]

this might help get you started:

<DIV align=&quot;center&quot;>
<SCRIPT>
var lines=7;
var half=(lines+1)/2;
var stars = 0;
for (i=1; i<=half; i++) { 
    stars++;
    for (j=1; j<=stars; j++) {
        document.write(&quot;*&quot;);
    }
    document.write(&quot;<BR>&quot;);
    
}
for (i=half; i<=lines; i++) { 
    stars--;
    for (j=1; j<=stars; j++) {
        document.write(&quot;*&quot;);
    }
    document.write(&quot;<BR>&quot;);
    
}
</SCRIPT>
</DIV>

the variable "lines" is the one you'd want to set based on user input. note i've made it look like a diamond by putting it in a div aligned center, you could do the same in a table cell with central alignment, or you'll have to modify it to write spaces as well as *'s

hope that helps...

~

http://www.anorakgirl.co.uk

~