Re^2: Declare and slice-initialize hash in one statement?

Which is also available in List::MoreUtils, with no referencing needed.

use strict;

use List::MoreUtils qw(zip);

my @keys = (1..3); my @values = (4..6);

my %hash = zip @keys, @values;
[download]

-xdg

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Comment on Re^2: Declare and slice-initialize hash in one statement? Download Code

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Re^3: Declare and slice-initialize hash in one statement? by BrowserUk (Patriarch) on Oct 27, 2005 at 17:06 UTC
Also called `mesh()` The downside of it's use of prototypes is that it precludes the use of inline anonymous array constructors: `use List::MoreUtils qw[zip]; my %hash = zip [1..3],['a'..'c']; Type of arg 1 to main::zip must be array (not single ref constructor) +at Type of arg 2 to main::zip must be array (not single ref constructor) +at` [download] In this case, trading the avoidance of two backslashes for the need to declare and initilise temporary arrays, or substitute the unweildy `use List::MoreUtils qw[zip]; my %hash = zip @{[1..3]},@{['a'..'c']};` [download] is not such a good trade. Of course it does handle more than two arrays, but that is a fairly rare usage. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal? "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l] [select]
Re^4: Declare and slice-initialize hash in one statement? by Roy Johnson (Monsignor) on Oct 27, 2005 at 17:25 UTC
Defeat troublesome prototypes by calling functions with `&`. Order your ampersand today! (Some parentheses required.) `my %hash = &zip([1..3],['a'..'c']);` [download] Caution: Contents may have been coded under pressure.	[reply] [d/l] [select]
Re^5: Declare and slice-initialize hash in one statement? by BrowserUk (Patriarch) on Oct 27, 2005 at 17:36 UTC
I'm not adverse to using the minutiae of Perl's syntax, but that is just a little subtle for my taste. I also get confused about when the use of & implies reusing the current @_. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal? "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l]
Re^6: Declare and slice-initialize hash in one statement? by Roy Johnson (Monsignor) on Oct 27, 2005 at 17:46 UTC
Re^7: Declare and slice-initialize hash in one statement? by BrowserUk (Patriarch) on Oct 27, 2005 at 17:59 UTC
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Think about Loose Coupling
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