class Hash
Public Instance Methods
deep_merge(other_hash, &block)
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Source: `ActiveSupport`
- https://github.com/rails/rails/blob/b2eb1d1c55a59fee1e6c4cba7030d8ceb524267c/activesupport/lib/active_support/core_ext/hash/deep_merge.rb
Returns a new hash with self
and other_hash
merged recursively.
h1 = { a: true, b: { c: [1, 2, 3] } } h2 = { a: false, b: { x: [3, 4, 5] } } h1.deep_merge(h2) # => { a: false, b: { c: [1, 2, 3], x: [3, 4, 5] } }
Like with Hash#merge in the standard library, a block can be provided to merge values:
h1 = { a: 100, b: 200, c: { c1: 100 } } h2 = { b: 250, c: { c1: 200 } } h1.deep_merge(h2) { |key, this_val, other_val| this_val + other_val } # => { a: 100, b: 450, c: { c1: 300 } }
# File lib/eco/api/common/version_patches/hash/deep_merge.rb, line 18 def deep_merge(other_hash, &block) dup.deep_merge!(other_hash, &block) end
deep_merge!(other_hash, &block)
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Same as deep_merge
, but modifies self
.
# File lib/eco/api/common/version_patches/hash/deep_merge.rb, line 23 def deep_merge!(other_hash, &block) merge!(other_hash) do |key, this_val, other_val| if this_val.is_a?(Hash) && other_val.is_a?(Hash) this_val.deep_merge(other_val, &block) elsif block_given? block.call(key, this_val, other_val) else other_val end end end