Simplest way to get count of keys with a particular value

Question

Given a javascript object, what is the simplest way to get the number of keys with a particular value?

For example, I have the following javascript obje

Answer 1

var result = {1: "PASS", 2: "PASS", 3: "FAIL", 4: "PASS", 5: "FAIL"};

undefined

function getCountByValue(obj,value){
  return Object.keys(result).filter(function(key){
  return result[key] === value

}).length

}

//as your wish
getCountByValue(result,'FAIL')
getCountByValue(result,'PASS')