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0+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes .
Ruby metaprogramming interview questions separate candidates who know the syntax from those who understand the risks. This module covers method_missing and why respond_to_missing? must always accompany it, define_method for dynamic method generation, send vs public_send (and the security difference), class_eval and instance_eval, const_get and const_set, instance_variable_get and instance_variable_set, the inherited/included/extended/method_added lifecycle hooks, and DSL patterns (the class macro pattern that Rails associations use). Every answer includes a realistic use case, the debuggability trade-off, and the production warning: metaprogramming makes stack traces harder to read and performance harder to profile.
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