JavaScript Fundamentals

Understand how JavaScript creates and manages execution context, the foundation for how code runs behind the scenes.

Learn how JavaScript tracks function calls using the call stack and how it relates to program execution order.

Explore variable declarations in JavaScript and understand the differences in scope, hoisting, and reassignment.

Learn JavaScript's core data types, how to link external scripts to HTML, and how to ensure code runs only after the document is ready.

Dive into JavaScript functions — how to define, call, and use them effectively in your code.

Master asynchronous JavaScript using async/await to write cleaner, more readable asynchronous code.