The contents of an entire object cannot
be viewed normally with the
function alert:
let obj = {1: 'a', 2: 'b', 3: 'c'};
alert(obj); // shows [Object object]
To see the contents of the entire object, you need to print it to the console:
let obj = {1: 'a', 2: 'b', 3: 'c'};
console.log(obj); // shows the object itself
Create an object with keys from
1 to 12, containing
month names as values. Print this
object to the console.