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Re: How can I re-program the exists function?

by BrowserUk (Pope)
on Aug 24, 2012 at 14:32 UTC ( #989555=note: print w/ replies, xml ) Need Help??


in reply to How can I re-program the exists function?

In a nutshell, you can't.

In the same way, you cannot program your own expression form of map or grep (eg. @squares = map $_**2, 1 .. 10;).

Many of perl's built-ins cannot be directly emulated with Perl code.


With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?


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