Simple JavaScript : Accessing properties of objects.

There are mainly two ways to access a property in JavaScript.

• Using dot notation (.)
• Using square bracket notation ([])

Consider an object like this.

var employee={
    name:"Antony",
    age:26
}

We can access properties of employee object in both ways.

1. employee.name

2. employee["name"]

But Consider a object that has non-string property names. Some times we have to use object property names with non-string types.
Ex:

var marks={
    30:"bad",
    70:"good"
}

In here we won't be able to properties with both notation. Only marks["30"] will work.