Class: Hash
- Inherits:
-
Object
- Object
- Hash
- Defined in:
- lib/vendor/hash.rb
Overview
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 } }
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# File 'lib/vendor/hash.rb', line 37 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
.
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# File 'lib/vendor/hash.rb', line 42 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.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 |