Objects and JSON

Objects! Objects are at the core of JavaScript. As mentioned before in Chapter 3, Nitty-Gritty Grammar, almost everything in JavaScript is, at its core, an object. Objects may be intimidating at first, but they're easy enough to grasp in theory:

Here's the skeleton of an object:

const myObject = { key: value }

An object is a collection of key/value pairs. They're useful for many reasons, especially to contain and organize data. Let's look at the example of Captain Picard from the Chapter 3, Nitty-Gritty Grammar:

const captain = {
  "name": "Jean-Luc Picard",
  "age": 62,
  "serialNumber": "SP 937-215",
  "command": "NCC 1701-D",
  "seniorStaff": ['Riker','Data','Worf', 'Troi']
}

As we saw, we can use dot notation to access the properties of an object, like so:

captain.command // equals "NCC 1701-D"

We can also use other data types...