Huh?!? At first sight those quotes didn't look quite right to me, so I tried to download code and indeed this is what I got when opening with my editor: 
print ~^Q[~^Q  . join(~^Q][~^Q, @array) .~^T]\n~^T;

[download]
I suppose they're HTML entities. The actual code you wanted to show is probably: 
print '['  . join('][', @array) ."]\n";

[download]

In reply to Re^2: remove whitespace from an array by blazar
in thread remove whitespace from an array by Anonymous Monk

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