As perlfaq4[1] shows: > You can do that with a pair of substitutions: > s/^\s+//...

nanis on July 20, 2016 | parent | context | favorite | on: Stack Overflow Outage Postmortem

As perlfaq4[1] shows:

    > You can do that with a pair of substitutions:

    >         s/^\s+//;
    >         s/\s+$//;

It then notes, in an understated manner:

    > You can also write that as a single substitution,
    > although it turns out the combined statement is 
    > slower than the separate ones. That might not 
    > matter to you, though:

    >        s/^\s+|\s+$//g;

[1]: http://perldoc.perl.org/perlfaq4.html#How-do-I-strip-blank-s...

cygx on July 21, 2016 [–]

In light of the given issue, it might be a good idea to update the example code to use \s++ instead...