Deciphering and printing a loop condtion

Question

Apologies for being newbie, I inherited perl code that I can not figure out, perhaps one of you can.

for ( @{$things} ){

...
}

I know arrays begin with @ and scalars begin with $.

I am not sure exactly what we are doing here, and attempts to print it out fail. What is the best way to print out @{$things} so I can figure out what this for loop is all about?

@PaulR, " know arrays begin with @ and scalars begin with $." — davidkonrad, Mar 27 '14 at 21:54
Apologies, forgot to mention it was perl. Now I feel like that guy that asked what time the internet closes at. — MuchNoob, Mar 28 '14 at 09:37

score 1 · Accepted Answer · answered Mar 28 '14 at 10:11

1

$things is a reference to an array
@{$things} dereference this array

See this doc.

answered Mar 28 '14 at 10:11

Toto

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Brilliant, thanks a lot. Now I understand more how to loop over an array with only a reference. Kudos. – MuchNoob Mar 28 '14 at 10:52

Deciphering and printing a loop condtion

1 Answers1