Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

Re: grepping arrays

by George_Sherston (Vicar)
on Jun 21, 2003 at 21:52 UTC ( #267875=note: print w/ replies, xml ) Need Help??


in reply to grepping arrays

I think the main thing going wrong is that your first argument needs to be a block of code rather than a scalar. grep works by running the block of code for each element in the array and returning the number of times it was true (or, if you did @output = grep... it gives you the list of elements from your input array for which it was true... but you don't care about that).

So this

if(grep($username =~ m/\b$_\b/, @ignore)) { print "That didn't quite work"; }
... may do what you want. (the \bs are so you only catch whole words).

George Sherston


Comment on Re: grepping arrays
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://267875]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (12)
As of 2014-12-26 14:21 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (171 votes), past polls