Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Your question is a bit vague, but if you're looking for the general purpose tool, it's splice. The others, shift and pop, can only perform a subset of what splice can do. Admittedly, this is a very useful subset that would be a hassle to use splice for all the time, but when you want general purpose you use general purpose.

In your case, it would be nice if you could collapse the user's selection into a set of ranges. If you don't want to do that, you could easily enough splice off one element at a time. The trick here is to iterate on the to-be-spliced indexes in descending order, otherwise you'll have to recalculate their new positions each time. Example:

my @array = (1 .. 1000); my @toremove = (7,1,6,5,3); for (sort { $b <=> $a } @toremove) { splice @array, $_, 1; }
# another way to to it: for (reverse sort @toremove) { ... }

Update: the Other Way was flawed. It didn't do a numeric sort.

In reply to Re: popping, shifting or splicing an array??? by revdiablo
in thread popping, shifting or splicing an array??? by drock

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 How to display code and escape characters are good places to start.
Log In?

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

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (4)
As of 2023-02-09 00:21 GMT
Find Nodes?
    Voting Booth?
    I prefer not to run the latest version of Perl because:

    Results (44 votes). Check out past polls.