Count number by coincidences into an array (Javascript)

count.js

/*
@author: juanpablocs21@gmail.com
@param: array (evaluate)
@return: array
*/
function count_numbers(arr){
  var c = {};
  var result = [];
  for(e in arr){
    n = arr[e]
    c[n] = c[n] ? c[n]+1 : 1;
  }
  for(i=0;i<10;i++){
    result.push(~~c[i]); // ~~ convert undefined to 0
  }
  return result;
}
console.log(count_numbers([2,2,3,4,5])); //return [0, 0, 2, 1, 1, 1, 0, 0, 0, 0]
/*
 array =>
 2,2,3,4,5
 
 return
 -----
|0 = 0
|1 = 0
|2 = 2
|3 = 1
|4 = 1
|5 = 1
|6 = 0
|7 = 0
|8 = 0
|9 = 0
------


*/