YAML is a widely used data serialization language. In almost any software project, or during any dev-ops tasks, you can come across with YAML. For example Ruby on Rails uses YAML for fixtures, configuration files and localization. CI/CD tools such as CircleCI and Travis also use YAML for configuration. If you ever experienced a strange behaviour with YAML, you may have used one of the many reserved words of YAML. YAML reserves some words such as ‘yes’, ’no’, ‘y’, ’n’, ‘off’, ‘on’, etc....

I recently had to find similar data located in a dataset, in order to find potential duplicate records: "John Doe 123456789" "John Foe 123123123" After considering a couple of options, I’ve decided to continue with Elasticsearch, as it was already integrated in the project I was working on. The Ruby client of Elasticsearch provided a useful function on search results, records.each_with_hit, that I could abuse for this situation: file = File....