The Complete JavaScript Mastery Course is a comprehensive, beginner-to-advanced program designed to teach you one of the most powerful and in-demand programming languages in the world.
Whether you’re a beginner starting fresh or someone looking to strengthen your skills, this course will help you master JavaScript with real-world examples, practical projects, and complete live guidance.
By the end of this course, you’ll be able to build fully functional applications, create interactive user interfaces, work with APIs, and confidently prepare for job interviews.
The Complete JavaScript Mastery Course has very simple prerequisites and is open to all beginners. Students only need basic computer knowledge, a laptop or desktop with a stable internet connection, and a willingness to learn. Basic HTML and CSS understanding is helpful but not mandatory. Additionally, students must have an active Telegram account for class updates and communication, and Google Meet installed for attending live sessions.
Learning JavaScript is extremely important because it is the core language of the web and powers almost every modern website and application. It helps you build interactive user interfaces, work with real-time data, and create dynamic features that users expect today. JavaScript is also essential for frontend development, and it opens doors to advanced fields like React, Node.js, and full-stack development. With high demand and excellent career opportunities, mastering JavaScript is one of the best steps toward becoming a job-ready developer.
The Complete JavaScript Mastery Course will run for 4.5 months, giving students enough time to learn every concept properly—from basics to advanced topics.
The Complete JavaScript Mastery Course will begin on 11 February 2026. Classes will be conducted every Wednesday starting from 6:30 PM, and the end time of the class will depend on the mentor’s mood. Sessions will be held live on Google Meet or Zoom. This flexible schedule allows students to learn comfortably while maintaining consistency throughout the entire program.
The total course fee for the Complete JavaScript Mastery Course is ₹1545. This one-time payment gives students full access to all live classes, notes, recordings, and real-world projects throughout the entire program.
Mr. Tamal Mandal
What is JavaScript?
JavaScript vs ECMAScript
How JavaScript works (Browser/Engine)
Embedding JS: Inline, Internal, External
JS Comments (Single-line & Multi-line)
Console & Debugging with Developer Tools
Variables: var, let, const
Data Types (Primitive & Reference)
Type Conversion and Coercion
Operators (Arithmetic, Comparison, Logical, Bitwise)
Template Literals
String and Number Methods
Escape Characters
if, else if, else
switch statement
Ternary Operator
Loops:
for, while, do-while
for...in, for...of
Function Declaration
Function Expression
Arrow Functions
Parameters vs Arguments
Return Statement
Callback Functions
IIFE (Immediately Invoked Function Expressions)
Recursive Functions
Creating and Accessing Arrays
Array Methods: push, pop, shift, unshift, slice, splice
Iteration: forEach, map, filter, reduce, find, some, every
Multidimensional Arrays
Sorting & Reversing Arrays
Object Literals & Properties
Accessing & Modifying Properties
this Keyword
Nested Objects
Object Methods
Object Destructuring
Object.keys(), Object.values()
What is the DOM?
Selecting Elements: getElementById, querySelector, etc.
Changing Content and Styles
Creating and Removing Elements
DOM Tree Traversal
Events: click, submit, keydown, etc.
window, navigator, screen, location, history
alert, prompt, confirm
Timers: setTimeout, setInterval, clearTimeout
Types of Errors
try...catch..
Debugging with Browser DevTools
Best Practices for Error Handling
let, const, var recap
Template Literals
Arrow Functions
Destructuring (Array & Object)
Spread and Rest Operators
Default Parameters
for...of, for...in
Optional Chaining
What is OOP?
Constructor Functions
ES6 Classes
this, super, new
Inheritance
Encapsulation
Static Methods
Getters & Setters
Global vs Local Scope
Function Scope vs Block Scope
Lexical Scope
Closures Explained with Examples
Use Cases of Closures
What is Async Programming?
setTimeout, setInterval
Callbacks & Callback Hell
Promises: resolve, reject, .then, .catch
async / await
Error Handling with try...catch in async
Form Handling
Fetch API (GET, POST)
Working with JSON
Fetch
REST API consumption
localStorage and sessionStorage
cookies
JSON
Higher-Order Functions
Event Loop, Call Stack
bind(), call(), apply()
Sidebar with Multiple Features
Background Color Changer using Closure
Random Color Generator with Color Type
Form Validation with Multiple Features
Image Slider with Multiple Features
Dark Mode Implementation
Music Player with Multiple Features
The recent C lesson was highly valuable, smoothly covering core concepts such as syntax and basic functions, which provided a strong foundation. The instructor Tamal da gives us useful clear examples which are very helpful for understanding complex topics. Outstanding and very informative lesson by Tamal da.
Third Year BCA Student (GIST)
The C language course is incredibly well structured and beginner-friendly. Tamal dada explained every concept very clearly and made even the toughest topics easy to understand. His step-by-step teaching style helped me build a strong foundation in programming from scratch. Truly an amazing and helpful experience!
Third Year B.Tech Student (KGEC)
Dada is teaching C language step by step from the very beginning in a way that anyone can learn easily. Every topic is explained very clearly, so even a complete beginner can do it without any difficulty, which makes the learning process smooth and effective. He makes learning interesting and always helps when we have questions. I really enjoy the classes and have learned a lot. Every class includes interview questions and real-life examples, so that job preparation is also done.
Third Year B.Tech Student (CEMK)
In the C Language with Logic Building course, every concept—no matter how small or foundational—is explained in detail to ensure complete understanding. The instructor takes the time to break down each topic clearly, and all doubts or questions are thoroughly addressed during the class itself, making the learning process smooth and effective.
Fourth Year B.Tech Student (CEMK)
I’ve learned every topic with clear and detailed explanations. The key skills I gained — including HTML, CSS, Figma, Bootstrap, JavaScript, and React — have truly strengthened my foundation. My confidence as a frontend developer has grown significantly throughout this journey. The projects I built, with the guidance of our teacher, helped me apply my knowledge in a practical way. I’m especially grateful to our teacher for explaining every concept so thoroughly and patiently.
Third Year B.Tech Student (CEMK)
I learned every topic with clear explanations. The key skills I gained — including HTML, CSS, Figma, Bootstrap, JavaScript, React, and more — were incredibly valuable and insightful. My confidence as a frontend developer grew significantly. The projects I built with the help of our teacher were well-structured and practical. Our teacher explained every concept in depth, making the learning process smooth and effective.
Third Year B.Tech Student (CEMK)
The course is incredibly well-structured and beginner-friendly. Tamal Dada made complex web concepts easy to grasp and guided us step-by-step in building websites from scratch. It’s a perfect start for real-world web development. That’s really amazing👍 and helpful.
Third Year B.Tech Student (CEMK)
The course is amazing, well structured. Dada helped me to understand how a website functions, how I can build it from scratch, and a lot of other modern world skills which is helpful for web development real world projects.
Third Year B.Tech Student (CEMK)
My teacher explains everything clearly and makes sure we understand the topic well. He make learning interesting and always help when we have questions. I really enjoy their classes and have learned a lot. A very kind and smart teacher.
Final Year B.Tech Student (CEMK)
It’s a very new institution of learning although it provides in depth knowledge, one to one conversation, doubt clearance. And mostly provide the real world problem solution. The founder of this institution, who is also the teacher provides every single and small details of the job industry. And besides that they really prepare me for the real-time job interview in the class and every topic that I have learned here covered from the basic to large industrial knowledge. Also the important fact is it’s in my own language which gives me more proper clear understanding, with very limited course fees. I’m very happy to join the institute. It is really worth it for my personal skill development.
Final Year B.Tech Student (TMSL)
Get step-by-step guidance from beginner to advanced level, designed so anyone can learn with ease.
All topics are taught with clear explanations and no difficulty in execution, even for complete beginners.
Each class includes possible interview questions and real-world examples to prepare you for success.
Final Year B.Tech Student (CEMK)
In case of front-end development your classes give me a huge opportunity to gain knowledge in depth about position, flex , animation, z- index and so many concepts.By attending your classes regularly front-end development become too smooth to understand.Specially, your teaching capability is very neat and clean.Your classes make me understand all properties of CSS JavaScript and many more specific parts of front-end development.Hope, I will be very helpful in my Software Engineer carrier by your classes of front-end development .
Final Year B.Tech Student (CEMK)
Dada is very knowledgeable and helpful. He has helped me a lot to understand the basic skeleton of a website (HTML) to advanced topics like advanced CSS, JavaScript in depth. I made my first real world project in this course.
Third Year B.Tech Student (CEMK)