Just pointing out line 8 as one of limitations of Js object dot notation

Question

Js object dot notation limitation
https://code.sololearn.com/W41Ygn5d7wDX/?ref=app

Answer 1

When you write the name of any key of the dictionary , you must follow the same rules when you write the name of any variable , so you should stat the name of the key by any character or _ or $ not number then you can use any number later , then your code should be as example

const car={
name:"volvo",
_4:"legs",
$price:10000
}
console.log(car['name'])
console.log(car.name)
console.log(car._4)
console.log(car["_4"])
console.log(car.$price)
console.log(car['$price'])

Answer 2

Object property name when using dot notation cannot start with a digit.Every other line is ok.

Answer 3

Ok.. I'll try it out.Thanks

Answer 4

You have a good point.However I'm just trying to point out a limitation of the dot notation.