note LanX you could use the [doc://perlop#Conditional-Operator|conditional operator] aka "ternary operator" :<P> <c>my @cell_contents = map { $_ ? 1 : 0 } @$array_ref[3..10];</c><P> another idea is to use doubled negation "<c>!!</c>" and to map the empty string (false) to 0.<P> <c>my @cell_contents = map { 0 + !!$_ } @$array_ref[3..10];</c><P> but I don't think this conciseness justifies the loss of readability.¹<P> <!-- Node text goes above. Div tags should contain sig only --> <div class="pmsig"><div class="pmsig-708738"> <p>Cheers Rolf </div></div><P> ¹) well if you really need 0 for false. 1010917 1010917