can anyone please help me in solving this? i am following a github course this a exercise question in it. I am stuck in it. Do we have to use Objects.key(obj) method in solving this question. there are two questions please help me in solving this two

const users = {
  Alex: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript'],
    age: 20,
    isLoggedIn: false,
    points: 30
  },
  Asab: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
    age: 25,
    isLoggedIn: false,
    points: 50
  },
  Brook: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
    age: 30,
    isLoggedIn: true,
    points: 50
  },
  Daniel: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
    age: 20,
    isLoggedIn: false,
    points: 40
  },
  John: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
    age: 20,
    isLoggedIn: true,
    points: 50
  },
  Thomas: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'React'],
    age: 20,
    isLoggedIn: false,
    points: 40
  },
  Paul: {
    email: '[email protected]',
    skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
    age: 20,
    isLoggedIn: false,
    points: 40
  }
}

CodePudding user response：

Theres few cool array Methods that can be handy here.

1. filter

   users.filter((user)=>user.points > 50).length

2. users.filter((user)=>user.skills.includes("MERN"))

if you meant either one of MERN it's a bit more complicated, you have few ways, look this question

CodePudding user response：

Object.values(users).filter(user => user.isLoggedIn).length

Object.values(users).filter(user => user.points >= 50).length

Object.entries(users).filter(([_, user]) => user.skills.includes("MongoDB", "Express", "React", "Node")).map(([name]) => name).join(", ")

I guess it's not the point of an exercise to have somebody else solve it.