diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash/keys.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/hash/keys.rb | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index d8748b1138..6b7f24eb3e 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -1,10 +1,14 @@ class Hash # Return a new hash with all keys converted to strings. + # + # { :name => 'Rob', :years => '28' }.stringify_keys + # #=> { "name" => "Rob", "years" => "28" } def stringify_keys dup.stringify_keys! end - # Destructively convert all keys to strings. + # Destructively convert all keys to strings. Same as + # +stringify_keys+, but modifies +self+. def stringify_keys! keys.each do |key| self[key.to_s] = delete(key) @@ -14,12 +18,15 @@ class Hash # Return a new hash with all keys converted to symbols, as long as # they respond to +to_sym+. + # + # { 'name' => 'Rob', 'years' => '28' }.symbolize_keys + # #=> { :name => "Rob", :years => "28" } def symbolize_keys dup.symbolize_keys! end # Destructively convert all keys to symbols, as long as they respond - # to +to_sym+. + # to +to_sym+. Same as +symbolize_keys+, but modifies +self+. def symbolize_keys! keys.each do |key| self[(key.to_sym rescue key) || key] = delete(key) |