Prev: List Literals, list ranges

List Assignment

Note! This site is about Perl 6.
If you are looking for a solution for Perl 5, please check out the Perl 5 tutorial.

my ($x, $y, $z);
($x, $y, $z) = f();  # if f() returns (2, 3, 7) then it is nearly the same as $x=2; $y=3; $z=7;
($x, $y, $z) = f();  # if f() returns (2, 3, 7, 9), then ignore 9
($x, $y, $z) = f();  # if f() returns (2, 3);  then $z will be undef

A regular question on job interviews: How can we swap the values of 2 variables, let say $x and $y?

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Gabor Szabo
Written by Gabor Szabo

Published on 2012-01-01

Prev: List Literals, list ranges


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