1. Фрагменты Perl 6
в Perl 5.10

2. Фрагменты Perl 6
в Perl 5.10
и различия

3. use feature qw(
say
switch
state
);

4. use feature qw(
say
switch
state
);
use feature quot;:5.10quot;;

5. use feature qw(
say
switch
state
);
use feature quot;:5.10quot;;
use 5.10.0;

6. use feature qw(
say
switch
state
);
use feature quot;:5.10quot;;
use v5.10.0;

7. say

8. my $x = ‘UPW2008’;
say $x;

9. 5.10
my $x = ‘UPW2008’;
say $x;
UPW2008

10. 6
my $x = ‘UPW2008’;
say $x;
UPW2008

11. 5.10
my $x = ‘UPW2008’;
say ($x);

12. 5.10
my $x = ‘UPW2008’;
say ($x);
UPW2008

13. 6
my $x = ‘UPW2008’;
say ($x);
UPW2008

14. 6
my $x = ‘UPW2008’;
say($x);
UPW2008

15. 6
my $x = ‘UPW2008’;
$x.say;
UPW2008

16. 5.10
my $x = ‘UPW2008’;
$x.say;

17. 6
my $x = ‘UPW2008’;
$x.say();
UPW2008

18. 5.10
my $x = ‘UPW2008’;
$x.say();
Undefined subroutine
&main::say called at ‐e
line 1

19. for (1..3) {
say;
}

20. 5.10
for (1..3) {
say;
}
1
2
3

21. 6
for (1..3) {
say;
}
n
n
n

22. 6
for (1..3) {
say $_;
}
1
2
3

23. 6
for (1..3) {
$_.say;
}
1
2
3

24. 6
for (1..3) {
.say;
}
1
2
3

25. switch

26. 5.10, 6
my $str = quot;YAPC::Asiaquot;;
given ($str) {
when (/Asia/) {
say quot;Asiaquot;
}
}

27. 5.10, 6
my $str = quot;YAPC::Asiaquot;;
given ($str) {
when (/Asia/) {
say quot;Asiaquot;
}
}

28. 6
my $str = quot;YAPC::Asiaquot;;
given ($str) {
when (/Asia/) {
say quot;Asiaquot;
}
}

29. 6
my $str = quot;YAPC::Asiaquot;;
given $str {
when /Asia/ {
say quot;Asiaquot;
}
}

30. 6
my $str = quot;YAPC::Asiaquot;;
given $str {
say quot;Asiaquot; when /Asia/
}

31. state

32. sub f {
state $c;
say ++$c;
}

33. sub f {
state $c;
say ++$c;
}
f(); f(); f();

34. 5.10
sub f {
state $c;
say ++$c;
}
f(); f(); f();
1 2 3

35. 6
sub f {
state $c;
say ++$c;
}
f(); f(); f();
1 2 3

36. sub f {
state $c = 0;
say ++$c;
}
f(); f(); f();

37. 5.10
sub f {
state $c = 0;
say ++$c;
}
f(); f(); f();
1 2 3

38. pugs
sub f {
state $c = 0;
say ++$c;
}
f(); f(); f();
1 1 1

39. //

40. //
defined‐or

41. my $c = 0;
my $d = $c // 3;
say $d; 0
my $e = 0;
my $f = $e || 4;
say $f; 4

42. ~~