get_day_name is a function which returns a string. The map command below works properly if I store its output in a %myHash variable and then print the Dumper of a reference to %myHash.

However I should be able to print the output of map directly. Yet Perl doesn't compile 

print Dumper \{map {$_ => get_day_name($_)} <DATA>};

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either. Nor does it compile 
print Dumper {map {$_ => get_day_name($_)} <DATA>};

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Why?

In reply to Printing a reference to the output of map by sierrathedog04

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