Learn what JavaScript is and where it's used.

Set up your development environment and run your first script.

Understand var, let, and const.

Write single-line and multi-line comments.

Learn primitive and reference data types.

Implicit and explicit type conversion.

Arithmetic, comparison, logical, and assignment operators.

if, else, and switch statements.

for, while, do...while, and for...of loops.

Create and work with JavaScript arrays.

Function declarations, expressions, and arrow functions.

Create and manipulate JavaScript objects.

Global, function, and block scope.

How variable and function declarations are hoisted.

Common string properties and methods.

Unpack array values into distinct variables.

Unpack object properties into distinct variables.

Copy and merge arrays and objects with ...

Collect remaining function arguments into an array.

String interpolation with backticks and ${}.

Convert between JavaScript objects and JSON.

Safely access nested properties with ?. and ??.

An overview of the array methods you'll use daily.

push, pop, shift, unshift, and splice.

indexOf, includes, find, and findIndex.

forEach, map, filter, and reduce.

sort, reverse, flat, and flatMap.

Array.isArray(), Array.from(), and Array.of().

Understand lexical scope and closures.

Master how `this` is determined at call time.

Class syntax, constructors, and instance methods.

Extend classes with extends and super.

Handle runtime errors with try, catch, and finally.

Import and export code between files.

Key-value pairs and unique value collections.

Create, format, and compare JavaScript dates.

Select, read, and modify HTML with JavaScript.

Listen for and respond to user interactions.

Fetch data from APIs with the Fetch API.

Static members, private fields, and getters/setters.

Handle asynchronous operations with Promises.

Write asynchronous code that reads like synchronous code.

Match and manipulate strings with patterns.

Pause and resume functions with function* and yield.

Handle events efficiently using a single listener.

Learn JavaScript's prototype-based inheritance.

Understand JavaScript's concurrency model.

Garbage collection and common memory leaks.