Came up during code review today.

1. Initializing a hash

Given something like: 

my @tests = ( "tfred", "tjock", "tfortytwo" );

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do you prefer: 
my %ntests = map { $_ => 0 } @tests;

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or: 
my %ntests;
@ntests{@tests} = (0) x @tests;

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2. Setting a string to a value or the empty string

Do you prefer: 

my $mol = "forty two" x ($n == 42);

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or: 
my $mol = ($n == 42) ? "forty two" : ""

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Please feel free to suggest alternative solutions.

In reply to Two simple code style advice questions by eyepopslikeamosquito

Title:
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