Strings as object keys in JavaScript
Strings can be object keys:
let obj = {'a': 1, 'b': 2, 'c': 3};
In this case, it is common practice not to put the string keys in quotes:
let obj = {a: 1, b: 2, c: 3};
Let's retrieve the element of our object by key:
console.log(obj['a']); // shows 1
Create the object user
with the keys 'name',
'surname', 'patronymic'
and some arbitrary values.
Display the last name, first name
and patronymic separated by a space.
