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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.
In reply to Re: How can I re-program the exists function?
by BrowserUk
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