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Mar 19th, 2018
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  1. function add1(v) { return v + 1; }
  2. function isOdd(v) { return v % 2 == 1; }
  3. function sum(total,v) { return total + v; }
  4.  
  5. var list = [2,5,8,11,14,17,20];
  6.  
  7. list
  8. .map( add1 )
  9. .filter( isOdd )
  10. .reduce( sum );
  11. // 48
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