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Subject:
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script from book not working
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Posted By:
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whyulil
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Post Date:
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11/18/2003 10:57:50 AM
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i cant see where im going wrong. The code is supposed to produce the times table based on the values at the end of the script:
writeTimesTable(4,4,9)
However it only writes
4 * 10 = 40
Can anybody spot my mistake? ive gone over it 5 times and i cant see the mistake.
<html>
<body>
<script language="JavaScript">
function writeTimesTable(timesTable, timesByStart, timesByEnd)
{
for (; timesByStart <= timesByEnd; timesByStart++);
{
document.write(timesTable + " * " + timesByStart + " = " + timesByStart * timesTable + "<br>");
}
}
writeTimesTable(4,4,9);
</script>
</body>
</html>
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Reply By:
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JayinOC
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Reply Date:
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11/18/2003 12:46:21 PM
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I think I found it.
for (; timesByStart <= timesByEnd; timesByStart++);
is the line that is screwing you up. I had no idea it would cause JS to mess up but the " ; " you have after the function parameters is what is doing it. Take out the semicolon from that line and you should be good to go.
I am totally new to Java Script and these chapter 3 examples nearly made me want to jump off the roof. This stuff is pretty hard for me.
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Reply By:
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pgtips
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Reply Date:
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11/18/2003 12:50:51 PM
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You had me going for a while here  .
Remove the ; from the end of this line
for (; timesByStart <= timesByEnd; timesByStart++);
otherwise you're closing the loop and the rest of the code is only executed once after the loop finishes.
hth
Phil
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Reply By:
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pgtips
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Reply Date:
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11/18/2003 12:53:01 PM
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You see, I took so long to spot it someone else beat me to it 
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Reply By:
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JayinOC
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Reply Date:
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11/18/2003 12:56:57 PM
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quote:
Originally posted by pgtips
You see, I took so long to spot it someone else beat me to it
And a rookie at that !!!
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