Perl function: eval

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Perl function: eval

eval() has two forms. The first takes a string, and treats it as Perl code. It compiles and executes it, returning whatever value is appropriate. If there is a fatal error, it sets the $@ variable. The other form is eval { CODE }. This executes a block of code in a fail-safe environment. If there are any fatal errors, the $@ is set, and the block is exited. A common use for this is:

print "Give me a number: ";
chomp(my $n = );
my $result = eval { 100 / $n };
if ($@) {
    errorHandler($@);
}

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eval

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