Answers for "iterate over keys"

javascript loop through object

Object.entries(obj).forEach(
    ([key, value]) => console.log(key, value)
);

for in loop key

// if you want to get the 'value' of the key  you can do it this way
const user = {firstName: 'John', lastName: 'Doe'}

for(key in user) console.log(user[key]);
// output : 
// John
// Doe

how to loop trough an object java script

const fruits = {
  apple: 28,
  orange: 17,
  pear: 54,
}

const values = Object.values(fruits)
console.log(values) // [28, 17, 54]