Re^2: grep or exists

in reply to Re: grep or exists
in thread grep or exists

grep(/^$wanted$/,@{$p->table} )

There is abolutely no need to limit use of grep in Perl to regular expressions. Any kind of boolean expression, or expression used as a boolean, for the filter condition, will do. For example:

  grep($_ == $wanted, @{$p->table} )
[download]

update: Better, as blazar points out, code that actually works for this case:

  grep($_->pid == $wanted, @{$p->table} )
[download]

Comment on Re^2: grep or exists Select or Download Code

Replies are listed 'Best First'.
Re^3: grep or exists by merlyn (Sage) on May 16, 2006 at 13:23 UTC
`grep($_->pid == $wanted, @{$p->table} )` [download] Since you want the first match, which should be the only match, use List::Util's `first`: `use List::Util qw(first); my $match = first {$_->pid == $wanted} @{$p->table};` [download] -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l] [select]

In Section Seekers of Perl Wisdom