Wygeneruj tablicę wszystkich kluczy obiektowych za pomocą Object.keys ()
let users = {
Alan: {
age: 27,
online: false
},
Jeff: {
age: 32,
online: true
},
Sarah: {
age: 48,
online: false
},
Ryan: {
age: 19,
online: true
}
};
function getArrayOfUsers(obj) {
// Only change code below this line
return Object.keys(obj)
// Only change code above this line
}
console.log(getArrayOfUsers(users));
// Answer: [ 'Alan', 'Jeff', 'Sarah', 'Ryan' ]
Ralph Dizon