Method: REXML::Functions.sum

Defined in:
lib/rexml/functions.rb

.sum(nodes) ⇒ Object 



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# File 'lib/rexml/functions.rb', line 408

def Functions::sum( nodes )
  nodes = [nodes] unless nodes.kind_of? Array
  nodes.inject(0) { |r,n| r + number(string(n)) }
end