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include?

        # Hash.include?

(from ruby core)
---
    hash.include?(key) -> true or false
    hash.has_key?(key) -> true or false
    hash.key?(key) -> true or false
    hash.member?(key) -> true or false

---

Methods #has_key?, #key?, and #member? are aliases for #include?.

Returns `true` if `key` is a key in `self`, otherwise `false`.



      

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.