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P5-hash-ordered
Jul 20, 2023
Fast, pure-Perl ordered hash class
HashOrdered implements an ordered hash, meaning that it associates keys with values like a Perl hash, but keeps the keys in a consistent order. Because it is implemented as an object and manipulated with method calls, it is much slower than a Perl hash. This is the cost of keeping order.
However, compared to other ordered hash implementations, HashOrdered is optimized for getting and setting individual elements and is generally faster at most other tasks as well. For specific details, see HashOrderedBenchmarks.
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