Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

•Re: Re: Re: Is it a number?

by merlyn (Sage)
on Oct 23, 2003 at 14:50 UTC ( #301599=note: print w/replies, xml ) Need Help??

in reply to Re: Re: Is it a number?
in thread Does it look like a number?

Yeah, the difference is the difference between "could this string be converted into a number without getting the warnings if -w is on?" vs "is this value always and only a number?". Everything in the latter case is also true for the former, but the inverse is not true. For example, all external data read from filehandles is always a string initially, so it could never pass this "is_numeric" test.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://301599]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (5)
As of 2018-03-18 13:44 GMT
Find Nodes?
    Voting Booth?
    When I think of a mole I think of:

    Results (230 votes). Check out past polls.