For an example usage, consider -p. 
$ perl -MO=Deparse -pe'f()'
LINE: while (defined($_ = <ARGV>)) {
    f();
}
continue {
    die "-p destination: $!\n" unless print $_;
}
-e syntax OK

[download]

It's just a question of pref, I think. It's also has a parallel with for(;;). Scoping aside, 

for (A; B; C) {
   D;
}

[download]
is basically the same as 
A;
while (B) {
   D;
} continue {
   C;
}

[download]
I've never used continue.

In reply to Re: while(){}continue{}; Useful? by ikegami
in thread while(){}continue{}; Useful? by BrowserUk

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