Class: Hash

Inherits:
Object show all
Defined in:
lib/hash/fetch_nested.rb

Instance Method Summary collapse

Instance Method Details

#fetch_nested(*keys) ⇒ Object Also known as: dig

nil safe version of Hash#[]. h.fetch_nested(*) is basically the same as h.try.send(:[],‘world’).



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# File 'lib/hash/fetch_nested.rb', line 4

def fetch_nested(*keys)
  begin
    keys.reduce(self){|accum, k| accum.fetch(k)}
  rescue (RUBY_VERSION<'1.9' ? IndexError : KeyError)
    block_given? ? yield(*keys) : nil
  end
end