How to calculate the Sum of all Values in a Ruby Array -


इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 18 उत्तर

मेरे पास एक सरणी है :

a = [1,2,5,8]

मैं एक साथ जोड़ (या गुणा) सभी तत्वों के मूल्य की गणना करना चाहता हूँ।

<पूर्व> a.inject {| sum, x | राशि + x}

या थोड़ा छोटा और तेज़: 

  a.inject (: +)

के लिए गुणन या जो कुछ भी, बस साइन इन करें: a.inject (: *)


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