Class: Kondate::HashExt
- Inherits:
-
Hash
- Object
- Hash
- Kondate::HashExt
- Defined in:
- lib/kondate/hash_ext.rb
Instance Method Summary collapse
-
#deep_merge(other_hash, &block) ⇒ Object
Returns a new hash with
self
andother_hash
merged recursively. -
#deep_merge!(other_hash, &block) ⇒ Object
Same as
deep_merge
, but modifiesself
.
Instance Method Details
#deep_merge(other_hash, &block) ⇒ Object
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 } }
18 19 20 |
# File 'lib/kondate/hash_ext.rb', line 18 def deep_merge(other_hash, &block) dup.deep_merge!(other_hash, &block) end |
#deep_merge!(other_hash, &block) ⇒ Object
Same as deep_merge
, but modifies self
.
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 |
# File 'lib/kondate/hash_ext.rb', line 23 def 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 = HashExt.new.replace(this_value) _this_value.deep_merge(other_value, &block).to_h else if block_given? && key?(current_key) block.call(current_key, this_value, other_value) else other_value end end end self end |