Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

Re^3: How can we interpolate an expression??

by Kenosis (Priest)
on Sep 20, 2012 at 18:42 UTC ( #994726=note: print w/ replies, xml ) Need Help??


in reply to Re^2: How can we interpolate an expression??
in thread How can we interpolate an expression??

Great understanding!

say "Product is @{[$number * $multiplier]}"; ^ ^ ^ ^ | | | | | | | + - EXPRESSION | | + - reference | + - dereference + - interpolate


Comment on Re^3: How can we interpolate an expression??
Download Code
Replies are listed 'Best First'.
Re^4: How can we interpolate an expression??
by tobyink (Abbot) on Sep 20, 2012 at 20:37 UTC

    It's such a common combination of operations that it's even got a name: the baby cart.

    perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

      Excellent, tobyink! I enjoy what it says there:

      Discovered by Larry Wall, 1994.

      It's the Discovered part that's intriguing...

        A number of Perl's "features" are actually bugs that were discovered, found to be useful and have been documented and carefully preserved. One that springs to mind is that s/.../.../ee evaluates twice, s/.../.../eee evaluates thrice, etc.

        I have a feeling that the baby cart is one of these.

        perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://994726]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (11)
As of 2015-07-28 16:06 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (258 votes), past polls