Turning objects into flexible arrays

// for-in loop
// const obj = { one: 1, two: 2 };

// for (const key in obj) {
//   console.log('value', obj[key]);
// }

// Object.keys(), Object.values(), Object.entries()
// const user = {
//   name: 'John',
//   age: 29  
// };

// console.log(Object.entries(user));

const users = {
  '2345234': {
    name: "John",
    age: 29
  },
  '8798129': {
    name: "Jane",
    age: 42
  },
  '1092384': {
    name: "Fred",
    age: 17 
  }
};

const usersOver20 = Object.entries(users).reduce((acc, [id, user]) => {
  if (user.age > 20) {
    acc.push({ ...user, id });
  }  
  return acc;
}, []);
console.log(usersOver20);

// const values = Object.keys(user).map(key => user[key]);
// console.log(values);
// console.log(Object.values(user));

// const monthlyExpenses = {
//   food: 400,
//   rent: 1700,
//   insurance: 550,
//   internet: 49,
//   phone: 95  
// };

// const monthlyTotal = Object.values(monthlyExpenses).reduce((acc, expense) => acc + expense, 0);
// console.log(monthlyTotal);