eFarmony Data Structures: Objects as Data Models

In this section we will explore how to represent our eFarmony data as a JavaScript object.

You will be placing all your code into the scripts.js file.

###Animal User Model

This object will be the model of a single animal user. Extra points if you get the pun in the last sentence.

An object to hold our data model...

With Dot Notation…

Add a property called username and assign it a value.
Ensure that your username property exists in animal by inspecting it in the console.

With Bracket Notation…

Add a property called tagline and give it a value.
Check that your property exists in the animal object by inspecting it in the console.
Create a variable called noises and assign it an empty array []
Add the noises array to your object.
Inspect your handiwork! Your object should look something like this:

  { username: 'DaffyDuck', tagline: 'Yippeee!', noises: [] }

Loop through the properties of your animal object.
Count everytime it loops to keep track of the number of properties on your object.
Write an if/else statement in your loop:
- If the key is username, console.log('Hi my name is ' + ___) //fill in with object's username value.
- If the key is tagline, console.log('I like to say ' + ___) //fill in with object's tagline value.
What happens if you return 'Hi my name is ' + ___ instead of using console.log() inside the loop?

Let's go over some concepts:

What are the different ways you can add properties and values to objects?
Which of these methods would you use if you wanted to add a property to an object that had a weird symbol (think '&')?
What about if the property is a variable, how does that change the syntax?

chrisrhoton / object-exercises