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Top Forums Web Development Intersection and union of array by hash Post 302500467 by radoulov on Monday 28th of February 2011 04:36:48 PM
Old 02-28-2011
Quote:
Originally Posted by yifangt
Thanks!
I got it now, but it seems to me if there is duplicate items in either of the arrays, it won't work, right?
Correct. That's why I said "assuming each array contains only unique values".

The union will work anyway (it's a union, not union all).
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PPI::Structure::Subscript(3)				User Contributed Perl Documentation			      PPI::Structure::Subscript(3)

NAME
PPI::Structure::Subscript - Braces that represent an array or hash subscript SYNOPSIS
# The end braces for all of the following are subscripts $foo->[...] $foo[...] $foo{...}[...] $foo->{...} $foo{...} $foo[]{...} INHERITANCE
PPI::Structure::Subscript isa PPI::Structure isa PPI::Node isa PPI::Element DESCRIPTION
"PPI::Structure::Subscript" is the class used for square and curly braces that specify one element of an array or hash (or a slice/subset of an array or hash) METHODS
"PPI::Structure::Subscript" has no methods beyond those provided by the standard PPI::Structure, PPI::Node and PPI::Element methods. Got any ideas for methods? Submit a report to rt.cpan.org! SUPPORT
See the support section in the main module. AUTHOR
Adam Kennedy <adamk@cpan.org> COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.18.2 2011-02-25 PPI::Structure::Subscript(3)
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