[Dilettante_Pro]

???

var phone = {
    brand: "meizu",
    model: "m2",
    ram: 2,
    color: "black"
};

function filter(object,search,val){
  var result = {};
  for(var key in object){
    if(search == key || object[key] == val)  result[key] = object[key];
  }
  return result;
}
console.log(filter(phone, "color",2));

var phone = {
    brand: "meizu",
    model: "m2",
    ram: 2,
    color: "black"
};

function filter(object,search,val){
  for(var key in object){
    if(search != key && object[key] != val)  delete object[key];
  }
}
filter(phone, "color",2);
console.log(phone);