diff options
| -rw-r--r-- | activesupport/lib/active_support/core_ext/hash/deep_merge.rb | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/deep_merge.rb b/activesupport/lib/active_support/core_ext/hash/deep_merge.rb index af771c86ff..2fa397bcd0 100644 --- a/activesupport/lib/active_support/core_ext/hash/deep_merge.rb +++ b/activesupport/lib/active_support/core_ext/hash/deep_merge.rb @@ -1,11 +1,16 @@ class Hash # Returns a new hash with +self+ and +other_hash+ merged recursively. + # + # h1 = {x: {y: [4,5,6]}, z: [7,8,9]} + # h2 = {x: {y: [7,8,9]}, z: "xyz"} + # + # h1.deep_merge(h2) #=> {:x => {:y => [7, 8, 9]}, :z => "xyz"} + # h2.deep_merge(h1) #=> {:x => {:y => [4, 5, 6]}, :z => [7, 8, 9]} def deep_merge(other_hash) dup.deep_merge!(other_hash) end - # Returns a new hash with +self+ and +other_hash+ merged recursively. - # Modifies the receiver in place. + # Same as +deep_merge+, but modifies +self+ def deep_merge!(other_hash) other_hash.each_pair do |k,v| tv = self[k] |