javascript-objects

Question 1

What are objects used for?

Answer 1

An object is a collection of related data and/or functionality (which usually consists of several variables and functions — which are called properties and methods when they are inside objects.)

Question 2

What are object properties?

Answer 2

Object properties are defined as a simple association between name and value.

Question 3

Describe object literal notation.

Answer 3

1. declare a variable
2. the object is the curly braces and its contents
3. separate each key form its value with a colon (property/method)
4. separate each property/method with a comma

Question 4

How do you remove a property from an object?

Answer 4

Use the delete operator with the property name.

Question 5

What are the two ways to get or update the value of a property?

Answer 5

1. dot notation

2. bracket notation