JavaScript Essentials
Your learning journey to master core JavaScript concepts for web development and beyond.
Module 1
Module 1: Introduction to JavaScript and Programming
Begin your JavaScript journey. Learn what JS is, how it works in browsers, and write your first script.
6 Lessons
1 Lab
1 Quiz
Module 2
Module 2: Variables, Data Types, Type Casting, and Comments
Learn how to store data, understand different data types, convert between them, and comment your code effectively.
6 Lessons
1 Lab
1 Quiz
Module 3
Module 3: Operators and User Interaction
Explore JavaScript operators for calculations and logic, and learn how to interact with users via dialog boxes.
6 Lessons
1 Lab
1 Quiz
Module 4
Module 4: Control Flow – Conditionals and Loops
Master decision-making with `if` and `switch`, and repetitive tasks with `for` and `while` loops.
5 Lessons
1 Lab
1 Quiz
Module 5
Module 5: Functions
Learn to write reusable blocks of code with functions, understand scope, and explore different function types.
6 Lessons
1 Lab
1 Quiz
Module 6
Module 6: Errors, Debugging, and Troubleshooting
Learn about different types of errors in JavaScript, how to handle them, and common debugging techniques.
5 Lessons
1 Lab
1 Quiz
Sharpen Your JS Skills
Reinforce your learning with these interactive JavaScript challenges.
JS Output Match
Test your understanding of JavaScript execution by matching code snippets to their correct output.
JS Syntax Spotter
Sharpen your JavaScript debugging skills. Find and identify syntax errors in various code examples.
JS Debug It! Puzzles
Become a JavaScript detective! Fix broken code snippets and make them run correctly using a live sandbox.