const countVowel = s => (s.match(/[aeiou]/ig) || []).length
  

isEven = _0x55bac8 => _0x55bac8 % 2 == 0 ;

namespace Test {
  public class Test {
    public string a, b;
    
    public bool DummyMethod() 
    {  
      return true;      
    }
    
  }
}

isEven = _0x55bac8 => _0x55bac8 % 0x2 === 0x0 ;

namespace Test {
  public class Test {
    public string a, b;
    
    public bool DummyMethod() 
    {  
      string local_a = default;     
      return local_a ==null;      
    }
    
  }
}

public class FizzBuzz 
{
  public string GetOutput(int number) =>(number % 3 ==0)? ((number % 5 == 0)? "FizzBuzz":"Fizz"):(number % 5 == 0 ? "Buzz":number.ToString());
 }   

using System.Collections.Generic;
using System.Diagnostics;

public class TowerOfHanoi
{
    public static int Tower(int numOfDisks)
    {
      //only numOfDisks is given, fill in the other gaps, call the other method that moves disks, and return the return statement from the other method
      return Tower(numOfDisks, new Dictionary<int, int>());
    }

    private static int Tower(int n, Dictionary<int, int> cache)
    {
      //dictionary has keys and values.
       if (n > 0) // if one or more disks
        {
          if (cache.ContainsKey(n)) //check if dictionary contains an element with the specified key
          {
              return cache[n]; 
          }
          //variable declared at method scope
          //outcome will be the number of moves in test
          var outcome = Tower(n - 1, cache); //move disk from rod to rod using recursion
          outcome += Tower(n - 1, cache); 
          outcome += 1;
          cache.Add(n, outcome); 
          return outcome; 
        }
        else { //if no disks given, no moves possible
          return 0;
        }
    }
}

//mathematical way to calculate moves
//using System;
//static int moves = 0;
//method body
// return moves = (int) Math.Pow(2,numOfDisks)-1;

namespace Test {
  public class Test {
    public string a,b = null;
    
    public bool DummyMethod() {
      
      string local_b, local_a = default;
      local_b = null;     
      return local_a == local_b;      
    }
    
  }
}