Exercise

Implement a function, pick, that takes in a JavaScript object and zero or more property names. It must return a copy of the given object that contains only the given property names.

const user = {
  name: "Ali",
  lastname: "Madooei",
  affiliation: "JHU",
  username: "amadooe1"
};

// TODO Implement the pick function




const result = pick(user, "name", "lastname");
console.log(result); // -> {"name":"Ali","lastname":"Madooei"}

function pick(object, ...keys) {
  let result = {};

  for (let i = 0; i < keys.length; i++) {
    result[keys[i]] = object[keys[i]];
  }

  return result;
}

const pick = (object, ...keys) => Object.keys(object)
    .filter(key => keys.includes(key))
    .reduce((result, key) => ({...result, [key]:object[key]}), {});