Where is my mistake in object?

Question

var person = {
color: "green", height: 12
name:"harry", age: 13,
};

var x = person.age
var y = person["age"]

document.write(x)
document.write(y)

Answer 1

Harry star , you haven't put a comma after height:12.
That is why you are getting the error.

Answer 2

First don't use document.write()
Second person has on property "age". person has age property.
Third use console.log() for debugging