writing a toFixed function

[CptDondo]

I'm not that familiar with javascript, and I am trying to write a
toFixed function.

The function takes two arguments, the number and the number of decimal
places we're interested in.

If the number of decimal places is negative, it's interpreted as the
number of significant digits.

Thus:

toFix(12345.6789,2) -12345.67
toFix(12345.6789,0) -12345
toFix(12345.6789,-2) -12000

I've hacked up a solution that so far works on all tested browsers for
the first 2 cases.

It's the last one I'm having trouble with... How do I get only the
significant digits?

It has to work for all of the following cases:
toFix(12345.6789,-2) -12000
toFix(12345.6789,-5) -12345
toFix(12345.6789,-7) -12345.67

Thanks,

--Yan

[Dr J R Stockton]

In comp.lang.javascript message <13*************@corp.supernews.com>,
Fri, 20 Jul 2007 10:41:52, CptDondo <ya*@NsOeSiPnAeMr.composted:

>I'm not that familiar with javascript, and I am trying to write a
toFixed function.

There is already a toFixed method, available in many browsers.

>The function takes two arguments, the number and the number of decimal
places we're interested in.

If the number of decimal places is negative, it's interpreted as the
number of significant digits.

That's using one function for two different jobs, depending on the sign
of the parameter. ISTM better to use two functions.

Such functions should return strings.

Did you consult the FAQ and the Web pages that it links to?

>--Yan

DSS.

--
(c) John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Turnpike v6.05 IE 6
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[CptDondo]

Dr J R Stockton wrote:

In comp.lang.javascript message <13*************@corp.supernews.com>,
Fri, 20 Jul 2007 10:41:52, CptDondo <ya*@NsOeSiPnAeMr.composted:

>I'm not that familiar with javascript, and I am trying to write a
toFixed function.

There is already a toFixed method, available in many browsers.

>The function takes two arguments, the number and the number of decimal
places we're interested in.

If the number of decimal places is negative, it's interpreted as the
number of significant digits.

That's using one function for two different jobs, depending on the sign
of the parameter. ISTM better to use two functions.

Such functions should return strings.

Did you consult the FAQ and the Web pages that it links to?

Ugh...

I should have engaged brain. We originally dumped the toFix and
toPrecision because we were working with an embedded browser which had
broken implementations. We've since dumped that browser, so I no longer
need to code around its "features".

--Yan