Use modulo arithmetic to decide which elements are even: 

for my $i (0..$#array) {
   print $array[$i];
   print "\n" if $i % 2 == 0;
}

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Change the details to match your specific problem, but using % is usually what you want.

duff

In reply to Re: inserting a new line after some elemnts in an array by duff
in thread inserting a new line after some elemnts in an array by s_gaurav1091

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