Introduction to Objects I 9/33

Accessing Properties, Part 2
In the last exercise, we accessed properties using what is known as dot notation. Good name, right? So to access a property, we useObjectName.PropertyName (e.g., bob.name)
In addition to dot notation, we can also access properties using bracket notation. In this case we use ObjectName["PropertyName"] to access the desired property. Note, we need " " around the property's name.
Take a look at our next example object calleddog. Notice on line 8 how we save the dog's species into a variable by accessing thespecies property of dog using bracket notation.

Instructions

Use bracket notation to save the dog's weightand age into variables as well.

// Take a look at our next example object, a dog

var dog = {

  species: "greyhound",

  weight: 60,

  age: 4

};

var species = dog["species"];

// fill in the code to save the weight and age using bracket notation

var weight =dog["weight"];

var age =dog["age"];