Came across some code I just had to share. How many steps
is this programmer from good, idiomatic perl?
sub padfield {
my ( $value, $fieldlength ) = @_;
while ( length $value < $fieldlength ) {
my $pad = '0';
$value = join( '', $pad, $value );
}
return $value;
}
- A creative use of join(). But why not just use simple string contcatenation:
$value = $pad . $value ?
- You could use the string repetition operator
$value = ("0" x ($fieldlength - length $value )) . $value.
- Or you could use take the right substring of an over-padded string.
- But even a C or Java programmer should know printf padded formats:
return sprintf "%0$fieldlengthd", $value.
--
TTTATCGGTCGTTATATAGATGTTTGCA
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