class Hash
Public Instance Methods
deep_deep_merge(other_hash, &block)
click to toggle source
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/utilities/hash.rb, line 16 def deep_deep_merge(other_hash, &block) dup.deep_deep_merge!(other_hash, &block) end
deep_deep_merge!(other_hash, &block)
click to toggle source
Same as deep_merge
, but modifies self
.
# File lib/utilities/hash.rb, line 21 def deep_deep_merge!(other_hash, &block) other_hash.each_pair do |current_key, other_value| this_value = self[current_key] self[current_key] = if this_value.is_a?(Hash) && other_value.is_a?(Hash) this_value.deep_deep_merge(other_value, &block) else if block_given? && key?(current_key) block.call(current_key, this_value, other_value) else other_value end end end self end
except(*keys)
click to toggle source
# File lib/utilities/hash.rb, line 39 def except(*keys) dup.except!(*keys) end
except!(*keys)
click to toggle source
# File lib/utilities/hash.rb, line 43 def except!(*keys) keys.each { |key| delete(key) } self end