将对象作为函数参数传递时的问题

Question

I have problems with a function that expects an object as a parameter. Apparently it assigns the properties only inside the function since outside the function it has no properties.

const makeUser = (name, age) => {
  return {
    name,
    age,
  };
};

let user;

const newUser = obj => {
  name = "userTester";
  age = 19;

  obj = makeUser(name, age);
  console.log(obj);
};

newUser(user);
console.log(user)
console.log(`El nombre del usuario es ${user.name} y tiene ${user.age} años.`);

Answer 1

I have no idea what u want to do but maybe something like that? lol

 const makeUser = (name, age) => { return { name, age, }; }; const newUser = obj => { name = "userTester"; age = 19; obj = makeUser(name, age); console.log(obj); return obj; }; let user = newUser(); const modifyUser = ()=>{ user.name = "José"; user.age = 35; } console.log(user); console.log(`El nombre del usuario es ${user.name} y tiene ${user.age} años.`); modifyUser(); console.log(`El nombre del usuario es ${user.name} y tiene ${user.age} años.`);