You may have got this already, but I'm going to explain without code fragments. pop takes an element off the end of an array; it matches up with push, which adds an element to the end of an array. shift takes an element off the beginning of an array; it matches up with unshift (OK that one is maybe a little clumsily named), which adds an element to the beginning of an array.

So, to answer the premise your title proposes, Nope -- reverse pop with push, and reverse shift with unshift. Still not convinced? Hop into the debugger and try a few examples, live, and see how Perl works. :)

Alex / talexb / Toronto

Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.

In reply to Re: pop and shift not reversible by talexb
in thread pop and shift not reversible by gannett

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