Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/class_extensions.rb

Instance Method Summary collapse

Instance Method Details

#sum(identity = 0, &block) ⇒ Object 



42
43
44
45
46
47
48
 
# File 'lib/class_extensions.rb', line 42

def sum(identity = 0, &block)
  if block_given?
    map(&block).sum(identity)
  else
    inject(0){ |sum, element| sum.to_f + element.to_f } || identity
  end
end