Data::DPath::Filters - Online Linux Manual PageSection : 3pm
Updated : 2019-10-24
Source : perl v5.30.0
Note : User Contributed Perl Documentation
NAMEData::DPath::Filters − Magic functions available inside filter conditions
API METHODS
affeMysterious test function. Will vanish. Soon. Or will it really? No, probably not. I like it. :−) Returns true if the value eq ‟affe”.
idxReturns the current index inside array elements. Please note that the current matching elements might not be in a defined order if resulting from anything else than arrays.
sizeReturns the size of the current element. If it is an array ref it returns the number of elements, if it is a hash ref it returns number of keys, if it is a scalar it returns 1, everything else returns −1.
keyIf it is a hashref returns the key under which the current element is associated as value. Else it returns undef. This gives the key() function kind of a ‟look back” behaviour because the associated point is already after that key.
valueReturns the value of the current element.
isaFrontend to UNIVERSAL::isa. True if the current element is_a given class.
reftypeFrontend to Scalar::Util::reftype. Returns Scalar::Util::reftype of current element $_. With this you can do comparison by yourself with eq, =~, ~~ or whatever in filter expressions.
is_reftype($EXPECTED_TYPE)Frontend to Scalar::Util::reftype. Checks whether Scalar::Util::reftype of current element $_ equals the provided argument $EXPECTED_TYPE and returns true/false.
AUTHORSteffen Schwigon <ss5@renormalist.net>
COPYRIGHT AND LICENSEThis software is copyright (c) 2019 by Steffen Schwigon. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. 0
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