JavaScript Quickstart Course (How To)

Data Types and Variables

JavaScript variables and data types are the foundation for creating programs that can store and retrieve information.

• Why JavaScript?
• Working with Data
• Store Information with Variables
• Common JavaScript Data Types
• Use Variables to Display Different Content
• Variables and Data Types Review
• Define Variables with let and const
• Creating Variables

Functions

Functions are at the heart of JavaScript. They let you create code you can reuse, and make performing the same steps over and over again simple, and your programs shorter.

• Before You Start
• Link JavaScript to an HTML File
• Create Reusable Code with Functions
• Pass Information to a Function
• Get Information From a Function
• Write a Function

Arrays and Loops

Arrays provide a way of storing more than one value in a single place. And loops let you repeat the same set of actions a certain number of times, and are frequently used to perform tasks on items in an array.

• Store Data with Arrays
• Create an Array
• Simplify Repetitive Tasks with a forEach Loop
• Write a Callback as an Arrow Function
• Write a Loop with for...of
• Common Loops and Iteration Methods
• Create a forEach Loop

Objects and Conditionals

JavaScript objects provide a way to store and access data as key-value pairs. And conditional statements let you create intelligent programs that can react to different conditions.

• Before You Start
• Store and Access Data with Objects
• Create an Object
• Write a Conditional Statement: if
• Write a Conditional Statement: else
• Practice Objects and Conditionals
• Objects and Conditionals Review