Formatting "Precision"

Controlling number of decimal places

[Conan_of_Oz]

My script generates a dollar value which I want to display, naturally, to 2 decimal places.

When I display this value within a table, it crops trailing zero's, so a value of $19.90 displays as $19.9

How can I control this?

NOTE: The section in question is in HTML format, using cgi variables. It is contained within a cgi "print block".

[KevinADC]

you could do it with a rewgexp, but using sprintf is easy too:

not sure how you are generating the dollar figures, but here's a generic example:

my @figures = (19.9, 100.000, 123.093, 34); 
foreach my $line (@figures) {  
 $line = sprintf("%.2f", $line); 
 print "\$$line\n"; 
} 
 

prints:

$19.90
$100.00
$123.09
$34.00

basically, just pass the variable you want to format to the sprinf() function. sprintf() has many common string formatting options:

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