Hi.

You could also iterate over the hash and delete each key/value pair with this:

#!/usr/bin/perl -w
use strict;

my %hash = ( Carol => 22, Mary => 21, Chris => 30 );
my( $k, $v);

while(( $k, $v) = each %hash ) {
  delete $hash{$k};
}
[download]

The previous solutions are more efficient but I thought you might appreciate an alternate method.

Update: Several followups included these suggestions:

• for (keys %hash) { delete $hash{$_};};
• delete $hash{$_} for keys %hash;

Both of those methods ignore the values, which are unimportant when deleting hash table entries.

Hope this helps,
-Katie

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.