Skip to content

Intro to JavaScript

Free Course

Fundamentals of the JavaScript Syntax

Related Nanodegree Program

Full Stack Web Developer

About this course

Learn the fundamentals of JavaScript, the most popular programming language in web development.

What you will learn

  1. Lesson 1: What is JavaScript?
    • Explore the quirky history of the JavaScript language
    • Learn how to use the JavaScript console and write your first line of JavaScript code
  2. Lesson 2: Data Types & Variables
    • Use a variety of data types to represent data in your code
    • Learn how to store data using variables
  3. Lesson 3: Conditionals
    • Translate real-life decisions into code using conditional statements
    • Model more complex problems using logical operators
  4. Lesson 4: Loops
    • Learn how to repeatedly execute code with loop and iteration fundamentals
    • Explore working with JavaScript while and for loops
  5. Lesson 5: Functions
    • Organize your code by declaring functions and writing function expressions
    • Demystify tricky JavaScript behavior by learning about scope and hoisting
  6. Lesson 6: Arrays
    • Store collections of data in arrays
    • Manipulate arrays using common properties and methods
  7. Lesson 7: Objects
    • Create JavaScript objects to represent complex data types

Prerequisites and requirements

This course is ideal for beginners who are looking to add a new programming language to their toolbelt. JavaScript is also foundational for developers who want to pursue a career in web development. No prior experience is necessary for this course.

See the Technology Requirements for using Udacity.

Why take this course?

JavaScript is the most popular programming language for both front-end and back-end web development. Applications for JavaScript span from interactive websites to the Internet of Things, making it a great choice for beginners and experienced developers looking to learn a new programming language.

Learn with the best.

  • Julia Van Cleve
    Julia Van Cleve


  • James Parkes
    James Parkes