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30-Day Money-Back Guarantee
Development Web Development JavaScript

The Complete JavaScript Course 2021: From Zero to Expert!

The modern JavaScript course for everyone! Master JavaScript with projects, challenges and theory. Many courses in one!
Bestseller
Rating: 4.7 out of 54.7 (102,530 ratings)
434,461 students
Created by Jonas Schmedtmann
Last updated 1/2021
English
English, French [Auto], 
30-Day Money-Back Guarantee

What you'll learn

  • Become an advanced, confident, and modern JavaScript developer from scratch
  • Build 6 beautiful real-world projects for your portfolio (not boring toy apps)
  • Become job-ready by understanding how JavaScript really works behind the scenes
  • How to think and work like a developer: problem-solving, researching, workflows
  • JavaScript fundamentals: variables, if/else, operators, boolean logic, functions, arrays, objects, loops, strings, etc.
  • Modern ES6+ from the beginning: arrow functions, destructuring, spread operator, optional chaining (ES2020), etc.
  • Modern OOP: Classes, constructors, prototypal inheritance, encapsulation, etc.
  • Complex concepts like the 'this' keyword, higher-order functions, closures, etc.
  • Asynchronous JavaScript: Event loop, promises, async/await, AJAX calls and APIs
  • How to architect your code using flowcharts and common patterns
  • Modern tools for 2020 and beyond: NPM, Parcel, Babel and ES6 modules
  • Practice your skills with 50+ challenges and assignments (solutions included)
  • Get downloadable lectures and friendly support in the Q&A area
  • Design your unique learning path according to your goals: course pathways
Curated for the Udemy for Business collection

Course content

21 sections • 314 lectures • 68h 20m total length

  • Preview05:25
  • Watch Before You Start!
    06:09
  • Read Before You Start!
    00:41
  • Migration Guide to v2 + Old Course
    02:09
  • Setting Up Our Code Editor
    08:23

  • Section Intro
    00:53
  • Hello World!
    05:57
  • A Brief Introduction to JavaScript
    11:18
  • Linking a JavaScript File
    15:55
  • Values and Variables
    16:05
  • Practice Assignments
    00:23
  • Data Types
    19:19
  • let, const and var
    09:58
  • Basic Operators
    19:31
  • Operator Precedence
    11:19
  • Coding Challenge #1
    10:28
  • Strings and Template Literals
    10:57
  • Taking Decisions: if / else Statements
    12:50
  • Coding Challenge #2
    06:21
  • Type Conversion and Coercion
    17:16
  • Truthy and Falsy Values
    10:03
  • Equality Operators: == vs. ===
    15:41
  • Boolean Logic
    08:30
  • Logical Operators
    10:37
  • Coding Challenge #3
    15:07
  • The switch Statement
    13:10
  • Statements and Expressions
    06:08
  • The Conditional (Ternary) Operator
    10:02
  • Coding Challenge #4
    09:11
  • JavaScript Releases: ES5, ES6+ and ESNext
    14:19

  • Section Intro
    00:36
  • Activating Strict Mode
    10:27
  • Functions
    19:08
  • Function Declarations vs. Expressions
    10:39
  • Arrow Functions
    09:52
  • Functions Calling Other Functions
    10:07
  • Reviewing Functions
    15:37
  • Coding Challenge #1
    18:12
  • Preview21:34
  • Basic Array Operations (Methods)
    12:52
  • Coding Challenge #2
    09:36
  • Introduction to Objects
    06:08
  • Dot vs. Bracket Notation
    19:21
  • Object Methods
    23:04
  • Coding Challenge #3
    12:58
  • Iteration: The for Loop
    11:11
  • Looping Arrays, Breaking and Continuing
    22:02
  • Looping Backwards and Loops in Loops
    11:53
  • The while Loop
    11:52
  • Preview15:35

  • Preview04:08
  • Course Pathways
    00:07

  • Section Intro
    00:39
  • Section Roadmap
    00:22
  • Setting up Prettier and VS Code
    16:22
  • Installing Node.js and Setting Up a Dev Environment
    11:32
  • Learning How to Code
    17:42
  • How to Think Like a Developer: Become a Problem Solver!
    10:53
  • Using Google, StackOverflow and MDN
    26:36
  • Debugging (Fixing Errors)
    05:09
  • Debugging with the Console and Breakpoints
    19:25
  • Coding Challenge #1
    15:24

  • Section Intro
    00:40
  • Basic HTML Structure and Elements
    09:32
  • Attributes, Classes and IDs
    13:09
  • Basic Styling with CSS
    12:00
  • Introduction to the CSS Box Model
    20:57

  • Section Intro
    00:49
  • Section Roadmap
    00:29
  • PROJECT #1: Guess My Number!
    08:47
  • What's the DOM and DOM Manipulation
    06:48
  • Selecting and Manipulating Elements
    08:22
  • Handling Click Events
    12:50
  • Implementing the Game Logic
    19:33
  • Manipulating CSS Styles
    08:17
  • Coding Challenge #1
    11:40
  • Implementing Highscores
    07:47
  • Refactoring Our Code: The DRY Principle
    15:05
  • PROJECT #2: Modal Window
    13:21
  • Working With Classes
    16:55
  • Handling an "Esc" Keypress Event
    14:11
  • Preview17:08
  • Rolling the Dice
    15:58
  • Switching the Active Player
    15:16
  • Holding Current Score
    24:55
  • Resetting the Game
    15:38

  • Section Intro
    01:31
  • Section Roadmap
    00:30
  • An High-Level Overview of JavaScript
    12:11
  • The JavaScript Engine and Runtime
    13:47
  • Execution Contexts and The Call Stack
    17:45
  • Preview25:37
  • Scoping in Practice
    21:13
  • Variable Environment: Hoisting and The TDZ
    11:00
  • Hoisting and TDZ in Practice
    14:42
  • The this Keyword
    06:30
  • The this Keyword in Practice
    13:11
  • Regular Functions vs. Arrow Functions
    18:04
  • Primitives vs. Objects (Primitive vs. Reference Types)
    16:06
  • Primitives vs. Objects in Practice
    14:57

  • Section Intro
    00:53
  • Section Roadmap
    00:22
  • Destructuring Arrays
    19:33
  • Destructuring Objects
    19:46
  • The Spread Operator (...)
    21:26
  • Rest Pattern and Parameters
    19:01
  • Short Circuiting (&& and ||)
    15:55
  • The Nullish Coalescing Operator (??)
    03:32
  • Coding Challenge #1
    14:57
  • Looping Arrays: The for-of Loop
    07:20
  • Enhanced Object Literals
    07:02
  • Optional Chaining (?.)
    16:10
  • Looping Objects: Object Keys, Values, and Entries
    10:09
  • Coding Challenge #2
    14:30
  • Sets
    13:18
  • Maps: Fundamentals
    14:03
  • Maps: Iteration
    12:41
  • Summary: Which Data Structure to Use?
    09:40
  • Coding Challenge #3
    09:37
  • Working With Strings - Part 1
    16:53
  • Working With Strings - Part 2
    21:45
  • Working With Strings - Part 3
    21:41
  • Coding Challenge #4
    15:15
  • String Methods Practice
    16:36

  • Section Intro
    00:48
  • Section Roadmap
    00:22
  • Default Parameters
    09:34
  • How Passing Arguments Works: Value vs. Reference
    13:36
  • First-Class and Higher-Order Functions
    05:24
  • Functions Accepting Callback Functions
    15:20
  • Functions Returning Functions
    06:36
  • The call and apply Methods
    16:51
  • The bind Method
    21:33
  • Coding Challenge #1
    18:47
  • Immediately Invoked Function Expressions (IIFE)
    07:52
  • Preview19:48
  • More Closure Examples
    15:30
  • Coding Challenge #2
    05:25

Requirements

  • No coding experience is necessary to take this course! I take you from beginner to expert!
  • Any computer and OS will work — Windows, macOS or Linux. We will set up your text editor the course.
  • A basic understanding of HTML and CSS is a plus, but not a must! The course includes an HTML and CSS crash course.

Description

*** The #1 bestselling JavaScript course on Udemy! ***

*** Completely re-built from scratch in October 2020 (65 hours video) ***

"Really, really well made course. Super in-depth, with great challenges and projects that will solidify your Javascript understanding. I found the lectures were paced perfectly -- Jonas doesn't skip over anything that might be useful to a JS developer" — Carson Bartholomew


JavaScript is the most popular programming language in the world. It powers the entire modern web. It provides millions of high-paying jobs all over the world.

That's why you want to learn JavaScript too. And you came to the right place!


Why is this the right JavaScript course for you?

This is the most complete JavaScript course on Udemy. It's an all-in-one package that will take you from the very fundamentals of JavaScript, all the way to building modern and complex applications.

You will learn modern JavaScript from the very beginning, step-by-step. I will guide you through practical and fun code examples, important theory about how JavaScript works behind the scenes, and beautiful and complete projects.

You will also learn how to think like a developer, how to plan application features, how to architect your code, how to debug code, and a lot of other real-world skills that you will need on your developer job.

And unlike other courses, this one actually contains beginner, intermediate, advanced, and even expert topics, so you don't have to buy any other course in order to master JavaScript from the ground up!

But... You don't have to go into all these topics. This is a huge course, because, after all, it's "The Complete JavaScript Course". In fact, it's like many courses in one! But you can become an excellent developer by watching only parts of the course. That's why I built this course in a very modular way, and designed pathways that will take you through the course faster.

By the end of the course, you will have the knowledge and confidence that you need in order to ace your job interviews and become a professional developer.


Why am I the right JavaScript teacher for you?

My name is Jonas, I'm an experienced web developer and designer, and one of Udemy's top instructors. I have been teaching this bestselling course since 2016 to over 350,000 developers, always listening to feedback and understanding exactly how students actually learn.

Recently, I took all my teaching experience to build this new and greatly improved JavaScript course. It's now the best and most in-depth JavaScript course that you will find on Udemy (and maybe the entire internet).

I know how students learn JavaScript and what they need in order to master it. And with that knowledge, I designed the ideal course curriculum. It's a unique blend of real-world projects, deep explanations, theory lectures, and challenges, that will take you from zero to an expert and confident JavaScript developer in just a couple of weeks.


So what exactly is covered in the course?

  • Build 5 beautiful real-world projects for your portfolio! In these projects, you will learn how to plan and architect your applications using flowcharts and common JavaScript patterns

  • Master the JavaScript fundamentals: variables, if/else, operators, boolean logic, functions, arrays, objects, loops, strings, and more

  • Learn modern JavaScript (ES6+) from the beginning: arrow functions, destructuring, spread operator, default arguments, optional chaining (ES2020), and more

  • How JavaScript works behind the scenes: engines, the call stack, hoisting, scoping, the 'this' keyword, reference values, and more.

  • Deep dive into functions: arrow functions, first-class and higher-order functions, bind, and closures.

  • Deep dive into object-oriented programming: prototypal inheritance, constructor functions (ES5), classes (ES6), encapsulation, abstraction, inheritance, and polymorphism. [This is like a small standalone course]

  • Deep dive into asynchronous JavaScript: the event loop, promises, async/await, and error handling. You will use these to access data from third-party APIs with AJAX calls. [This is like a small standalone course]

  • Learn modern tools that are used by professional web developers: NPM, Parcel (module bundler), Babel, and ES6 modules

Check out the course curriculum for an even more detailed overview of the content :)


This is what's also included in the package:

  • Up-to-date HD-quality videos, that are easy to search and reference (great for Udemy for Business students)

  • Videos are also downloadable. Learn wherever you want, even without an internet connection!

  • Professional English captions (not the auto-generated ones)

  • Downloadable starter code and final code for each section

  • Downloadable slides for 40+ theory videos (not boring, I promise!)

  • Free support in the course Q&A

  • 25+ coding challenges and 25+ assignments to practice your new skills (solutions included)


This course is for you if...

  • ... you want to gain a true and deep understanding of JavaScript

  • ... you have been trying to learn JavaScript but: 1) still don't really understand JavaScript, or 2) still don't feel confident to code real apps

  • ... you are interested in using a library/framework like React, Angular, Vue, or Node.js in the future

  • ... you already know JavaScript and are looking for an advanced course. This course includes expert topics!

  • ... you want to get started with programming: JavaScript is a great first language!


Does any of these look like you? If so, then start this adventure today, and join me and 350,000+ other developers in the only JavaScript course that you will ever need!

Who this course is for:

  • Take this course if you want to gain a true and deep understanding of JavaScript
  • Take this course if you have been trying to learn JavaScript but: 1) still don't really understand JavaScript, or 2) still don't feel confident to code real apps
  • Take this course if you're interested in using a library/framework like React, Angular, Vue or Node in the future
  • Take this course if you already know JavaScript and are looking for an advanced course. This course includes expert topics!
  • Take this course if you want to get started with programming: JavaScript is a great first language!

Featured review

Vishal Ramane
Vishal Ramane
16 courses
1 review
Rating: 5.0 out of 53 months ago
I had some development experience before (backend) and I wanted to really learn JavaScript and I must tell you, this is the best JavaScript course on the internet period. It has everything you need to get you up to speed and more!!! Apart from innovative challenges and awesome projects, what I personally really admired was the fact that Jonas really took a lot of effort in explaining "How JS works under the hood" and that is the most precious thing in this course, and just what I wanted.

Instructor

Jonas Schmedtmann
Web Developer, Designer, and Teacher
Jonas Schmedtmann
  • 4.7 Instructor Rating
  • 220,060 Reviews
  • 1,031,359 Students
  • 5 Courses

Hi, I'm Jonas! I have been identified as one of Udemy's Top Instructors and all my premium courses have recently earned the best-selling status for outstanding performance and student satisfaction.

I'm a full-stack web developer and designer with a passion for building beautiful things from scratch. I've been building websites and apps since 2007 and also have a Master's degree in Engineering.

It was in college where I first discovered my passion for teaching and helping others by sharing all I knew. And that passion brought me to Udemy in 2015, where my students love the fact that I take the time to explain important concepts in a way that everyone can easily understand.

Do you want to learn how to build awesome websites with advanced HTML and CSS?

Looking for a complete JavaScript course that takes you from beginner to advanced developer?

Or maybe you want to build modern and fast back-end applications with Node.js?

Then don't waste your time with random tutorials or incomplete videos. All my courses are easy-to-follow, all-in-one packages that will take your skills to the next level.

These courses are exactly the courses I wish I had when I was first getting into web development!

So see for yourself, enroll in one of my courses (or all of them :D) and join my 500,000+ happy students today.

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