Re^2: map confusion

Thank-you. However even with ++$_, @array is still affected in the first case, but not with *. Any thoughts on why?

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Re^3: map confusion by FreeBeerReekingMonk (Deacon) on Dec 16, 2015 at 00:04 UTC
Let's say you have a variable `$A` and you do this: `$A = 5; $B = $A++; print $A;` # prints out 6. $B is 5 `$A = 5; $B = ++$A; print $A;` # prints out 6. $B is 6 `$A = 5; $B = $A*2; print $A;` # prints out 5. $B is 10 `$A = 5; $B = $A+1; print $A;` # prints out 5. $B is 6 Because ++ changes the original AFTER the operation, and mutiplication just returns the result, without modifying the original.	[reply] [d/l] [select]

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Re^3: map confusion
by FreeBeerReekingMonk (Deacon) on Dec 16, 2015 at 00:04 UTC

Let's say you have a variable $A and you do this:
$A = 5; $B = $A++; print $A; # prints out 6. $B is 5
$A = 5; $B = ++$A; print $A; # prints out 6. $B is 6
$A = 5; $B = $A*2; print $A; # prints out 5. $B is 10
$A = 5; $B = $A+1; print $A; # prints out 5. $B is 6

Because ++ changes the original AFTER the operation, and mutiplication just returns the result, without modifying the original.

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