class Hash
The core Hash
class This adds the deep_merge
method to this core class which is used to join nested hashes
Public Instance Methods
deep_merge(other_hash)
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Non destructive version of deep_merge
using a dup
@param [Hash] the hash to be merged with @returns [Hash] A copy of a new hash merging the hash this was called on and the param hash
# File lib/core_ext/hash.rb, line 10 def deep_merge(other_hash) dup.deep_merge!(other_hash) end
deep_merge!(other)
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Recusively merges hashes into each other. Any value that is not a Hash
will be overridden with the value in the other hash.
@param [Hash] the hash to be merged with @returns [Hash] A copy of itself with the new hash merged in
# File lib/core_ext/hash.rb, line 19 def deep_merge!(other) raise ArgumentError unless other.is_a?(Hash) other.each do |k, v| self[k] = (self[k].is_a?(Hash) && self[k].is_a?(Hash)) ? self[k].deep_merge(v) : v end self end