Ruby's Hash Is a Swiss-Army Knife

• Kiba

  7 1,722 0.0 Ruby

  Data processing & ETL framework for Ruby

Definitely! As a matter of fact, this is the default data structure I use when writing Ruby ETL code (e.g. https://github.com/thbar/kiba/wiki).

Methods like "except" (https://docs.ruby-lang.org/en/3.2/Hash.html#method-i-except) or "fetch" (raising an error on missing key) are very convenient to write defensive data processing code!

Similarly, in Elixir, I use Maps a lot for the same type of jobs (https://hexdocs.pm/elixir/1.15.4/Map.html), with similar properties.

• lru_redux

  2 282 10.0 Ruby

  An efficient optionally thread safe LRU Cache

Yeah, you can use it to implement a simple (but not necessarily very performant) LRU: https://github.com/SamSaffron/lru_redux/blob/037ee594aded597...

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• PHPT

  276 37,320 10.0 C

  The PHP Interpreter

  

Seems to have changed in the implementation indeed and I now didn't spend much time thinking through the current implementation.

But the old implementation had pointers to next and last (previous) element in the list: https://github.com/php/php-src/blob/PHP-5.3/Zend/zend_hash.h...

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