Javascript: Why is it I can change variable attempt but not result

Question

I'm trying to understand why I'm able to push the key into var attempt in the higher order function but result stays at 0 and isn't increasing.

function arrayBuilder(obj) {
let count=0
let result=0
let attempt=[]
for(let currentkey in obj)
{
  count=obj[currentkey]
  var hello=getValues(count,currentkey,result,attempt)
  
}


 console.log(attempt);
 console.log(result);
 return attempt;
}

function getValues(counting,key,result,attempt)
    {
  
  
  // for loop and push into result
  for(let i=0;i<counting;i++)
    {
        attempt.push(key)
        result++
        
        
      
    }
}
 
 console.log(arrayBuilder({'cats': 2, 'dogs': 1})); // => ['cats', 'cats', 'dogs']
 console.log(arrayBuilder({})); // => []