Hello monks,
Can you please explain the mechanism that makes the following print "0 2 4" in Perl:
my @flist = ();
foreach my $i (0 .. 2)
{
push(@flist, sub {$i * $_[0]});
}
foreach my $f (@flist)
{
print $f->(2), "\n";
}
The Python equivalent prints "4 4 4":
flist = []
for i in xrange(3):
def func(x): return x * i
flist.append(func)
for f in flist:
print f(2)
Javascript and Common Lisp behave like Python, while Scheme behaves like Perl.
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