method
compare_by_identity
v1_9_2_180 -
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Class: Hash
- 1_8_6_287
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- 1_9_2_180 (-38)
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- What's this?
compare_by_identity()
public
Makes hsh compare its keys by their identity, i.e. it will consider exact same objects as same keys.
h1 = { "a" => 100, "b" => 200, :c => "c" } h1["a"] #=> 100 h1.compare_by_identity h1.compare_by_identity? #=> true h1["a"] #=> nil # different objects. h1[:c] #=> "c" # same symbols are all same.