Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
$${a} and $$a compile to the same stuff. The first expressions contains more tokens so it takes longer to parse but you parse it only once (admittedly per script execution) But the real point is that is also more difficult to read.
# perl -MO=Concise,-exec -e '$$a' 1 <0> enter 2 <;> nextstate(main 1 -e:1) v 3 <$> gvsv(*a) s 4 <1> rv2sv vK/1 5 <@> leave[t1] vKP/REFC -e syntax OK perl -MO=Concise,-exec -e '${$a}' 1 <0> enter 2 <;> nextstate(main 2 -e:1) v 3 <$> gvsv(*a) s 4 <1> rv2sv vK/1 5 <@> leave[t1] vKP/REFC -e syntax OK

-- stefp


In reply to Re: Efficiency of $$var, ${$var} by stefp
in thread Efficiency of $$var, ${$var} by bladx

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • 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 or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (2)
As of 2022-05-28 01:27 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you prefer to work remotely?



    Results (98 votes). Check out past polls.

    Notices?