23 lines
555 B
Ruby
23 lines
555 B
Ruby
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class Hash
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def deep_merge(other_hash, &block)
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dup.deep_merge!(other_hash, &block)
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end
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def deep_merge!(other_hash, &block)
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other_hash.each_pair do |current_key, other_value|
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this_value = self[current_key]
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self[current_key] = if this_value.is_a?(Hash) && other_value.is_a?(Hash)
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this_value.deep_merge(other_value, &block)
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else
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if block_given? && key?(current_key)
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block.call(current_key, this_value, other_value)
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else
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other_value
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end
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end
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end
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self
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end
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end
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