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Answer: How do I remove whitespace at the beginning or end of my string?

by Bobinours (Acolyte)
on May 23, 2002 at 01:52 UTC ( #168633=categorized answer: print w/replies, xml ) Need Help??

Q&A > regular expressions > How do I remove whitespace at the beginning or end of my string? - Answer contributed by Bobinours

I read somewhere (probably in the CookBook) that it's faster to execute this :
$string=~s/^\s+//; $string=~s/\s+$//;
Than the one-liner :

$string =~ s/^\s+|\s+$//g;

Edited by davido: Removed useless use of /g modifier from the two-line (faster) example.

Replies are listed 'Best First'.
Re: Answer: How do I remove whitespace at the beginning or end of my string?
by Abigail-II (Bishop) on Jul 14, 2003 at 15:08 UTC
    Note that the /g in the two line example are pointless. There's no need to repeatedly remove all whitespace at the front or end.

    Abigail

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