Cleanliness Is Next to Domain Specificity
summary
Claim: using domain-specific vocabulary in Ruby shapes clearer thinking and better code; evidence: examples with ActiveRecord is not a language and RSpec promotes specifications show that most DSL-like Ruby is vocabulary, not new grammar. Tools and demo: ruby, mocha, kayak and sidestep sample APIs, rails idioms. Built and refactored: a kayak Ruby client that exchanges session and search ids and pages results in tens‑of‑results loops; result is shorter, more domain-focused code that works and reads like the problem.
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