freeCodeCamp/guide/english/javascript/tutorials/declare-javascript-objects-as-variables/index.md

title
Declare JavaScript Objects as Variables

This has a simple format. You declare your variable and have it equal to an object in the form { key: value}

var car = {
  "wheels":4,
  "engines":1,
  "seats":5
};

You can access the object's properties using dot notation or bracket notation.

Using dot notation:

console.log(car.wheels); // 4

Using bracket notation:

console.log(car["wheels"]); // 1

Using dynamic bracket notation:

var seatsProperty = "seats";
console.log(car[seatsProperty]); // 5