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Channel FREE NOTES 🔖CODINIT🔖 (@cod_init) in the English language segment is an active participant. Currently, the community unites 12 456 subscribers, ranking 16 260 in the Education category and 33 765 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 12 456 subscribers.
According to the latest data from 18 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -168 over the last 30 days and by -2 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 0%. Within the first 24 hours after publication, content typically collects N/A% reactions from the total number of subscribers.
- Post reach: On average, each post receives 0 views. Within the first day, a publication typically gains 0 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 0.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“🔸This Channel is Only For Educational Purposes.
No Copyright Infringement Intended.
🔸All the Credits & Rights Reserved to the Actual Owners.
✅ paid promotion DM @CODInitBot
#studymaterial #interview #placement #notes #course #gate #freecourse #j...”
Thanks to the high frequency of updates (latest data received on 19 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Education category.
12 456
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-337 days
-16830 days
Posts Archive
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After covering the basics, here are the intermediate and advanced JavaScript topics you should explore:
### Intermediate JavaScript Topics:
1. Object-Oriented Programming (OOP)
- Classes and objects.
- Inheritance, polymorphism, and encapsulation.
- The
this keyword and binding.
- Prototypes and prototypal inheritance.
2. Asynchronous JavaScript
- Callbacks.
- Promises: chaining, error handling.
- async/await for cleaner asynchronous code.
- Understanding the Event Loop and how JavaScript handles asynchronous tasks.
3. Closures
- What closures are and how they work.
- Practical use cases (e.g., data encapsulation).
4. Modules
- Importing and exporting JavaScript modules (ES6 module system).
- CommonJS vs. ES6 modules.
5. Higher-Order Functions
- Functions that take other functions as arguments or return them (map, filter, reduce).
6. Error Handling
- Advanced use of try/catch.
- Custom error types.
- Throwing errors manually.
7. Regular Expressions (RegEx)
- Creating and using regular expressions.
- Pattern matching for validation and search.
8. Working with APIs
- Making HTTP requests (fetch, Axios).
- REST APIs and handling responses.
- Understanding JSON data.
9. JavaScript in the Browser
- Web Storage (localStorage, sessionStorage).
- Browser APIs (geolocation, file API).
- Web Workers for running scripts in the background.
10. Event Bubbling and Delegation
- Understanding event propagation and how to handle events efficiently.
---
### Advanced JavaScript Topics:
1. Design Patterns in JavaScript
- Singleton, Factory, Observer, Module, and other design patterns.
- Why and how to use them in large applications.
2. Advanced Asynchronous Concepts
- JavaScript concurrency models (microtasks vs macrotasks).
- Advanced use of async/await (parallel and sequential execution).
- Using Promise.all, Promise.race, and Promise.any.
3. Memory Management and Performance Optimization
- Understanding the JavaScript engine (V8).
- Garbage collection and how to write memory-efficient code.
- Avoiding memory leaks.
4. Advanced Functional Programming
- Currying and partial application.
- Function composition.
- Pure functions and immutability.
5. Generators and Iterators
- Understanding and using generators (function*).
- Iterators and custom iteration protocols.
6. Advanced Event Handling
- Custom events.
- Debouncing and throttling to optimize event handlers.
7. Meta Programming
- Proxies and Reflect.
- Understanding the Proxy object for intercepting operations.
- Using Reflect to manipulate objects and functions.
8. Modules and Bundling
- Deep dive into modern bundlers (Webpack, Parcel, etc.).
- Code splitting, tree shaking, and dynamic imports.
9. JavaScript Frameworks and Libraries
- Understanding the core principles of frameworks like React, Vue, or Angular.
- Component-based architecture and state management.
10. TypeScript
- Introduction to TypeScript and adding static types to JavaScript.
- Working with interfaces, enums, and generics.
11. Testing
- Writing unit tests (Jest, Mocha).
- End-to-end testing (Cypress).
- TDD (Test-Driven Development) practices.
12. Advanced DOM Manipulation
- Virtual DOM.
- Shadow DOM and Web Components.
- Custom elements.
By learning these intermediate and advanced topics, you'll become proficient in JavaScript and be well-prepared for real-world applications and performance optimization.12 455
To start learning JavaScript from the basics, you should focus on the following topics:
1. Introduction to JavaScript
- What JavaScript is and how it works with HTML and CSS.
- Setting up your environment (browser console, text editor).
2. Basic Syntax and Data Types
- Variables (let, const, var).
- Data types: numbers, strings, booleans, arrays, objects.
3. Operators and Expressions
- Arithmetic operators (+, -, *, /).
- Comparison operators (==, ===, !=, !==).
- Logical operators (&&, ||, !).
4. Control Flow
- Conditional statements (if, else, switch).
- Loops (for, while, do-while).
5. Functions
- Declaring and calling functions.
- Parameters and return values.
- Arrow functions.
6. Arrays and Objects
- Creating and manipulating arrays.
- Array methods (push, pop, map, filter, etc.).
- Creating and working with objects.
7. DOM Manipulation
- Selecting elements (getElementById, querySelector).
- Adding and modifying content.
- Handling events (click, input, etc.).
8. ES6+ Features
- Template literals.
- Destructuring.
- Spread and rest operators.
9. Error Handling
- try, catch, finally.
10. Introduction to Asynchronous JavaScript
- Callbacks.
- Promises.
- async/await.
Once you’re comfortable with the basics, you can move to more advanced topics like object-oriented programming, asynchronous operations, and working with APIs.
12 455
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12 455
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List of most asked Programming Interview Questions.
Are you preparing for a coding interview? This tweet is for you. It contains a list of the most asked interview questions from each topic.
Arrays
- How is an array sorted using quicksort?
- How do you reverse an array?
- How do you remove duplicates from an array?
- How do you find the 2nd largest number in an unsorted integer array?
Linked Lists
- How do you find the length of a linked list?
- How do you reverse a linked list?
- How do you find the third node from the end?
- How are duplicate nodes removed in an unsorted linked list?
Strings
- How do you check if a string contains only digits?
- How can a given string be reversed?
- How do you find the first non-repeated character?
- How do you find duplicate characters in strings?
Binary Trees
- How are all leaves of a binary tree printed?
- How do you check if a tree is a binary search tree?
- How is a binary search tree implemented?
- Find the lowest common ancestor in a binary tree?
Graph
- How to detect a cycle in a directed graph?
- How to detect a cycle in an undirected graph?
- Find the total number of strongly connected components?
- Find whether a path exists between two nodes of a graph?
- Find the minimum number of swaps required to sort an array.
Dynamic Programming
1. Find the longest common subsequence?
2. Find the longest common substring?
3. Coin change problem?
4. Box stacking problem?
5. Count the number of ways to cover a distance?
