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Improve collision explanation for Hash#transform_keys.

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Based on comments at
42417b0013 (commitcomment-5527251)

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Hendy Tanata 2014-02-28 11:28:24 -08:00
parent 245574ae02
commit cee7a06746
1 changed files with 3 additions and 3 deletions
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6
guides/source/active_support_core_extensions.md
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@ -2719,7 +2719,7 @@ The method `transform_keys` accepts a block and returns a hash that has applied
# => {"" => nil, "A" => :a, "1" => 1} # => {"" => nil, "A" => :a, "1" => 1}
``` ```
The result in case of key collision is not guaranteed: In case of key collision, one of the values will be chosen. The chosen value may not always be the same given the same hash:
```ruby ```ruby
{"a" => 1, a: 2}.transform_keys { |key| key.to_s.upcase } {"a" => 1, a: 2}.transform_keys { |key| key.to_s.upcase }
@ -2761,7 +2761,7 @@ The method `stringify_keys` returns a hash that has a stringified version of the
# => {"" => nil, "a" => :a, "1" => 1} # => {"" => nil, "a" => :a, "1" => 1}
``` ```
The result in case of key collision is not guaranteed: In case of key collision, one of the values will be chosen. The chosen value may not always be the same given the same hash:
```ruby ```ruby
{"a" => 1, a: 2}.stringify_keys {"a" => 1, a: 2}.stringify_keys
@ -2805,7 +2805,7 @@ The method `symbolize_keys` returns a hash that has a symbolized version of the
WARNING. Note in the previous example only one key was symbolized. WARNING. Note in the previous example only one key was symbolized.
The result in case of key collision is not guaranteed: In case of key collision, one of the values will be chosen. The chosen value may not always be the same given the same hash:
```ruby ```ruby
{"a" => 1, a: 2}.symbolize_keys {"a" => 1, a: 2}.symbolize_keys