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Javascript asterisk triangles

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Sep 26.2006

(a)
*
**

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

(b)

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

**
*

(c)
**********
*********
********
*******
******
*****
****
***
**
*

(d)
*
**

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

The problem is that I have tried quite a number of ways, and I can only do the first 2. The last two are actually inverted. I can’t seem to get it to display what they look like(on this post).. What am I doing wrong? Thnx for your time.

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JavaScript

5 Comments(s) ↴

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@prayeauthorSep 26.2006 — for ( var row = 1; row <= 10; ++row )

{

document.writeln( "<br />" );

for ( var column = 1; column <= row; ++column )
{

document.write( "* " );

}
}


"</br>"

document.writeln("<br>(b)");

for ( var row = 1; row <= 10; ++row )
{
document.writeln( "<br />" );

for ( var column = 1; column <= 11; ++column )
{

if ( column > row )
{

document.write( "* " );
}
}
}

</script>

</body>

</html>

</script>
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@A1ien51Sep 26.2006 — And what is your code?

all it is two nested for loops
<i>
</i>for(var i....something......){
for(var j....something.....j&lt;i.....something){
document.write("*");
}
}

fill in the blanks to finish your homework....hehhehe

Eric
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@UltimaterSep 26.2006 — Make sure to use [b]&nbsp;[/b]'s (no break spaces) for the blank spaces otherwise they will be ignored.
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@jvanamaliSep 26.2006 — try this

for ( var row = 1; row <= 10; ++row )

{

document.writeln( "<br />" );

for ( var column = 1; column <= row; ++column )

{

document.write( "* " );

}

}


"</br>"

document.writeln("<br>(b)");

for ( var row = 1; row <= 10; ++row )

{

document.writeln( "<br />" );

for ( var column = 1; column <= 11; ++column )

{

if ( column > row )

{

document.write( "* " );

}

}

}

"</br>"

document.writeln("<br>(c)");

for ( var row = 1; row <= 10; ++row )

{

document.writeln( "<br />" );

for ( var column = 11-row; column < 10; ++column )

{

document.write( "&nbsp;&nbsp;&nbsp;" );

}

for ( var column = 1; column <= 11-row; ++column )

{

document.write( "* " );

}

}

"</br>"

document.writeln("<br>(d)");

for ( var row = 1; row <= 10; ++row )

{

document.writeln( "<br />" );

for ( var column = 1; column < 11-row; ++column )

{

document.write( "&nbsp;&nbsp;&nbsp;" );

}

for ( var column = 11-row; column <= 10; ++column )

{

document.write( "* " );

}

}
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@prayeauthorSep 26.2006 — Works like a charm!!!
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