JavaScript Syllabus

What is JavaScript and its role in web development

Embedding JavaScript in HTML (<script> tag, external files)

Writing your first script (console.log)

Understanding variables (var, let, const)

Primitive types: string, number, boolean, null, undefined, symbol, bigint

Type conversion and coercion

Arithmetic, comparison, logical operators

String operations and template literals

Conditional statements (if, else if, else, switch)

Loops (for, while, do…while)

Break and continue

Function declaration vs expression

Arrow functions

Parameters, arguments, default values

Return values

Scope (local, global, block)

Creating and manipulating arrays

Common array methods (push, pop, shift, unshift, map, filter, reduce)

Objects: properties and methods

Object destructuring and spread operator

Selecting elements (getElementById, querySelector)

Changing content and styles

Creating and removing elements

Event handling (onclick, addEventListener)

Higher-order functions

Closures

Callback functions

Recursion

let and const

Template literals

Destructuring assignment

Modules (import, export)

Promises and async/await

try…catch…finally

Throwing custom errors

Debugging with console and browser dev tools

Constructor functions

Prototypes and inheritance

Classes (class, extends, super)

Encapsulation and abstraction

JSON basics

Fetch API (fetch)

Handling responses and errors

Async programming with APIs

Event loop and concurrency

Local storage and session storage

Regular expressions

Introduction to frameworks (React, Vue, Angular overview)

Writing clean and maintainable code

Code organization and modularity

Performance optimization

Security basics (XSS, CSRF awareness)